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Marine Nitrate High Range Checker HC – HI782
Nitrate is the final step in the Nitrogen cycle. Excessive amounts of nitrates in saltwater aquariums facilitate the growth of undesirable organisms such as algae and dinoflagellates. The HI782 Nitrate Checker HC is a simple, accurate, and cost-effective way to measure nitrate from 0.0 up to 75.0 ppm (as NO3–) in your saltwater aquarium.
Using the Zinc Reduction method, a no filter process, The HI782 Nitrate Checker HC measures the concentration of nitrate colormetrically. Hanna Instruments Checker HC provides quick results in four easy steps:
- For use with saltwater samples.
- More accurate than chemical test kits.
- Dedicated to a single parameter.
- Small size, big convenience.
- No errors with a digital readout.
- Ideal for aquariums and marine biology applications.
HI782 High Range Nitrate Checker vs HI781 Low Range Nitrate Checker
The HI782 was designed to quickly and easily measure nitrate levels for aquarist with higher-than-average nutrient levels. This includes saltwater aquariums that are fish-only or have corals that can tolerate elevated levels of nitrate at 30 ppm or more.
Very low levels of nitrate are critical for many saltwater reef aquariums, as nitrate can cause damage and possible death to certain delicate corals and invertebrates. For this reason, the HI781 offers unmatched precision in the measurement of very low levels of nitrate (0.00 to 5.00 ppm). For freshwater samples, Hanna Instruments recommends using the HI97728 Nitrate Portable Photometer.
HI782 Checker HC is supplied with sample cuvettes with caps (2), marine nitrate starter kit (reagents for 10 tests), 3 mL Pasteur pipette (1), 1.5V AAA battery (1), and instruction manual.
| SKU | HI782 |
| Name | Marine Nitrate High Range Checker HC ? HI782 |
| Nitrate Range | 0.0 to 75.0 ppm (as NO3?) |
| Nitrate Resolution | 0.1 ppm |
| Nitrate Accuracy | ?2.0 ppm ?5% of reading |
| Nitrate Method | Zinc reduction method. The reaction between nitrate and the reagent causes a pink tint in the sample. This checker has been developed to work with seawater samples. |
| Photometer/Colorimeter Light Source | LED @ 525 nm |
| Photometer/Colorimeter Light Detector | silicon photocell |
| Battery Type/Life | 1.5V AAA |
| Automatic Shut-Off | after 10 minutes of non-use |
| Environment | 0 to 50?C (32 to 122?F); RH max 95% non-condensing |
| Weight | 64 g (2.3 oz.) |
| Dimensions | 86.0 mm x 61.0 mm x 37.5mm (3.2 x 2.4 x 1.5”) |
Marine Low Range Nitrate Checker HC - HI781
Nitrate is a by-product of the Nitrogen cycle. Excessive amounts of Nitrates in a reef aquarium can promote the growth of undesirable organisms including algae and dinoflagellates while insufficient amounts can lead to starvation in which SPS and other corals will show signs including the loss of color and paleness. The HI781 Nitrate Checker HC is a handheld colorimeter that uses the Beer-Lambert principle to determine the concentration of nitrate colorimetrically. The HI781 is designed specifically to measure low levels of nitrate in a saltwater aquarium. The 0.00 to 5.00 ppm (mg/L) range is ideal for reef aquarium maintenance.
Designed as a more accurate alternative to chemical test kits, the HI781 provides quick, accurate results in four easy steps:
Features at-a-glance:
- Easier to use and more accurate than chemical test kits
- Small size, big convenience
- Ideal for aquariums and marine biology
HI781 Checker HC is supplied with sample cuvettes with caps (2), nitrate reagent starter kit (reagents for 25 tests), filter holder, 10 mL syringe, 5 mL syringe with tip, mixing vial with cap, battery, and instructions.
| SKU | HI781 |
| Name | Marine Low Range Nitrate Checker HC – HI781 |
| Nitrate Range | 0.00 to 5.00 ppm (as NO3?) |
| Nitrate Resolution | 0.01 ppm |
| Nitrate Accuracy | ?0.25 ppm ?2% of reading @ 25 ?C (77 ?F) |
| Nitrate Method | Colorimetric method. The reaction between nitrate and the reagent causes a pink/violet tint in the sample. This checker has been developed to work with seawater samples. |
| Photometer/Colorimeter Light Source | Light Emitting Diode @ 525 nm |
| Photometer/Colorimeter Light Detector | Silicon photocell |
| Battery Type/Life | 1.5V AAA Alkaline |
| Automatic Shut-Off | After 10 minutes of non-use |
| Environment | 0 to 50 ?C (32 to 122 ?F); max. 95% RH non-condensing |
| Weight | 64 g (2.3 oz) |
| Dimensions | 86.0 x 61.0 x 37.5 mm (3.4 x 2.4 x 1.5”) |
Marine pH Checker HC – HI780
HI780 Marine Checker® Handheld Colorimeter is a simple, accurate, and cost-effective way to measure pH in saltwater aquariums. Keeping aquarium pH stable reduces stress on your fish and aquatic animals, helping them resist disease and other stressors. Maintaining an ideal pH can also improve growth, behavior, and overall appearance of the aquarium.
This portable Checker HC is pocket sized with a large easy-to-read LCD. The auto shut-off feature assures the battery life will not be drained if you forget to turn it off.
Designed as a more accurate alternative to chemical test kits, the HI780 marine pH meter provides quick, accurate results in a few easy steps.
HI779 Checker HC is supplied with sample cuvettes with caps (2 pcs.), pH starter reagent kit, 1.5VAAA battery (1 pc.), and instruction manual packaged in a plastic carrying case.
| SKU | HI779 |
| Name | Pool Line pH Checker® HC – HI779 |
| pH Range | 6.3 to 8.6 pH |
| pH Resolution | 0.1 pH |
| pH Accuracy | ?0.2 pH of reading |
| pH Method | Adaptation of Phenol Red Method |
| Photometer/Colorimeter Light Source | LED @ 525 nm |
| Photometer/Colorimeter Light Detector | silicon photocell |
| Battery Type/Life | 1.5V AAA |
| Automatic Shut-Off | after 10 minutes of non-use |
| Weight | 64 g (2.3 oz.) |
| Dimensions | 86.0 mm x 61.0 mm x 37.5mm (3.2 x 2.4 x 1.5”) |
Pool Line pH Checker® HC - HI779
The HI779 Pool Line pocket colorimeter is designed to measure pH in swimming pools, hot tubs, and spas, on a range between 6.3 and 8.6 pH. The HI779 follows the same principle as chemical test kits and pool litmus paper, but with a key advantage. The value is determined electronically, thanks to a light source and a photodetector, which precisely detect the color produced by the sample’s reaction with phenol red. So you no longer have to guess what color your sample is to determine pH. The instrument offers much greater sensitivity than the human eye and can detect pH values with resolutions down to 0.1 pH.
The instrument’s shape fits perfectly in your palm or pocket, and the large LCD display is easy to read. The auto-off function ensures long battery life.
To perform a measurement, fill a cuvette with a water sample, place it in the instrument, and zero the Checker®. Next, add the reagent, which will react with the hydrogen ion, causing a color change. Finally, place the vial in the Checker®, press the button, and read the results. It’s that easy!
| SKU | HI780 |
| Name | Marine pH Checker HC ? HI780 |
| pH Range | 6.3 to 8.6 pH |
| pH Resolution | 0.1 pH |
| pH Accuracy | ?0.2 pH of reading |
| pH Method | Adaptation of Phenol Red Method |
| Photometer/Colorimeter Light Source | LED @ 525 nm |
| Photometer/Colorimeter Light Detector | silicon photocell |
| Battery Type/Life | 1.5V AAA |
| Automatic Shut-Off | after 10 minutes of non-use |
| Environment | 0 to 50?C (32 to 122?F); RH max 95% non-condensing |
| Weight | 64 g (2.3 oz.) |
| Dimensions | 86.0 mm x 61.0 mm x 37.5mm (3.2 x 2.4 x 1.5”) |
Pool Line Alkalinity Checker HC - HI7754
HI7754 Pool Line Checker® Handheld Colorimeter is designed for the measurement of alkalinity in swimming pools, hot tubs, and spas. Alkalinity is a very important parameter in monitoring swimming pool water chemistry. Alkalinity is the buffering capacity of a solution to resist a pH change from the addition of an acid or base. This can be a challenge when using common forms of chlorine, in that, as a base when the chlorine is added the pH will increase. As the pH of the water increased above pH 7.4 the chlorine becomes predominately in the hypochlorite form instead of the hypochlorous acid as the pH decreases from pH 7.4. Hypochlorous acid is 100 times more effective as a sanitizer than the hypochlorite form. When water is low in alkalinity the pH will increase as the chlorine is added. When there is adequate alkalinity then as the chlorine is added the base is absorbed and the pH remains the same. Monitoring alkalinity is important in maintaining a stable pH of a swimming pool hot tub, or spa.
The contoured style of these Checkers’ fit in your palm and pocket perfectly and the large LCD is easy to read. The auto shut-off feature assures the battery life will not be drained if you forget to turn it off.
To perform a measurement the instrument a water sample is placed into a cuvette and the meter is zeroed. Next, a reagent is added that will react with alkalinity to produce a distinctive range of colors from yellow to greenish-blue. Last, place the vial into the Checker, press the button and read the results. It’s that easy. It is important to note that if chlorine is in the water sample to be tested then it is necessary to add HI937554-53 chlorine remover first before proceeding with the test.
HI7754 Checker HC is supplied with sample cuvettes with caps (2 pcs.), Alkalinity reagent starter (25 tests), 1.5VAAA battery (1 pc.), and instructions all packaged into a custom carrying case.
| SKU | HI7754 |
| Name | Pool Line Alkalinity Checker HC – HI7754 |
| Alkalinity Range | 0 to 500 ppm (as CaCO3) |
| Alkalinity Resolution | 1 ppm |
| Alkalinity Accuracy | ?5 ppm ? 5% of reading |
| Alkalinity Method | colorimetric Method. The reaction causes a distinctive range of colors from yellow to greenish blue to develop. This checker has been developed to work with fresh water samples. |
| Photometer/Colorimeter Light Source | LED @ 610 nm |
| Photometer/Colorimeter Light Detector | silicon photocell |
| Battery Type/Life | 1.5V AAA |
| Automatic Shut-Off | after 10 minutes of non-use and 2 minutes after reading |
| Environment | 0 to 50?C (32 to 122?F); RH max 95% non-condensing |
| Weight | 64 g (2.3 oz.) |
| Dimensions | 86.0 mm x 61.0 mm x 37.5mm (3.2 x 2.4 x 1.5”) |
Freshwater Alkalinity Checker® HC - HI775
The HI775 Checker® HC (Handheld Colorimeter) provides a simple, accurate and cost-effective way to measure alkalinity. Present in varying concentrations in freshwater bodies, alkalinity, from carbonate and noncarbonate salts, provides a buffer against drastic pH changes in water. Used in the drinking water treatment process, the concentration of alkalinity dictates which chemicals are used and at what volumes, as well as protecting finished, potable drinking water in the distribution system. If being used to test samples where chlorine is present the HI93755-53 Chlorine remover is available so that any possibility of a chlorine interference is avoided. Designed as a more accurate alternative to chemical test kits, the HI775 provides quick, accurate results in four easy steps:
Features at-a-glance:
- Easier to use and more accurate than chemical test kits
- Dedicated to a single parameter
- Small size, big convenience
- Ideal for: Water Quality, Environmental, Education, Industrial
HI775 Checker® is supplied with (2) sample cuvettes with caps, alkalinity reagent starter kit for 25 tests (1 bottle of alkalinity reagent), (1) 1 ml syringe and tip), ??? battery, instructions and quick start guide.
| SKU | HI775 |
| Name | Freshwater Alkalinity Checker® HC – HI775 |
| Alkalinity Range | 0 to 500 ppm |
| Alkalinity Resolution | 1 ppm |
| Alkalinity Accuracy | ?5 ppm (mg/L) ?5% of reading |
| Alkalinity Method | colorimetric method. |
| Photometer/Colorimeter Light Source | LED @ 610 nm |
| Photometer/Colorimeter Light Detector | silicon photocell |
| Battery Type/Life | (1) 1.5V AAA |
| Automatic Shut-Off | after ten minutes of non-use |
| Environment | 0 to 50?C (32 to 122?F); RH max 95% non-condensing |
| Weight | 64 g (2.25 oz.) |
| Dimensions | 81.5mm x 61mm x 37.5mm (3.2 in. x 2.4 in. x 1.5”) |
Marine Phosphate Ultra Low Range Checker® HC - HI774
The HI774 Checker® HC (Handheld Colorimeter) provides a simple, accurate and cost-effective way to measure phosphate in marine systems including coral reef tanks. Phosphate is an important parameter to measure in aquaculture and aquariums; levels that are too high can lead to extensive algae growth, depleted dissolved oxygen levels, and ultimately can be fatal to many types of fish and aquatic life. Designed as a more accurate alternative to chemical test kits, the HI774 provides quick, accurate results. For those that would like measure phosphate as phosphorous we off the HI736 Phosphorous Checker® HC. Alternatively, to determine the fraction of phosphorous (PO4-P) there is in phosphate (PO43-) the phosphate reading is multiplied by 0.3261. A 0.50 ppm phosphate reading is equal to 0.163 ppm or 163 ppb phosphorous.
Features at a Glance
Pre-mixed Chemistry
- Reagents are pre-measured packets that are added to the sample to take a reading.
Colorimetric Readings
- Using an LED at a specific wavelength and silicon photo detector the HI774 can perform a precise reading of the color change in the sample based on the phosphate concentration.
Checker HC Calibration Standards
- The HI774-11 CAL-Check standards can be purchased separately and are used to check the performance of the meter to ensure confidence that the meter is working properly.
Automatic Shut-off
- The meter is programmed to turn off after seven minutes of non-use or two minutes after taking a reading.
Long Battery Life
- The phosphate ULR Checker has an exceptional battery life with a fresh battery lasting for a minimum of 5000 measurements.
Plastic Carrying Case
- The 774 is supplied complete with meter and reagents for 10 tests that are packaged in a durable plastic carrying case.
Economical
- Laboratory grade measurements at a cost of a chemical test kit.
HI774 Checker® is supplied with (2) sample cuvettes with caps, phosphate ULR reagent for 10 tests, battery, instructions and quick start guide.
| SKU | HI774 |
| Name | Marine Phosphate Ultra Low Range Checker® HC – HI774 |
| Phosphate Range | 0.00 to 0.90 ppm |
| Phosphate Resolution | 0.01 ppm |
| Phosphate Accuracy | ? 0.02 ppm ? 5% of reading |
| Phosphate Method | adaptation of the Standard Methods for the Examination of Water and Wastewater, 20th edition, Ascorbic-Acid method. The reaction between phosphate and the reagent causes a blue tint in the sample. |
| Photometer/Colorimeter Light Source | LED @ 525 nm |
| Photometer/Colorimeter Light Detector | silicon photocell |
| Battery Type/Life | (1) 1.5V AAA |
| Automatic Shut-Off | after seven minutes of non-use and two minutes after taking a reading |
| Environment | 0 to 50?C (32 to 122?F); RH max 95% non-condensing |
| Weight | 64 g (2.25 oz.) |
| Dimensions | 86.0mm x 61mm x 37.5mm (3.4 in. x 2.4 in. x 1.5”) |
Marine Alkalinity (dKH) Checker® HC - HI772
The HI772 Checker®HC (Handheld Colorimeter) provides a simple, accurate and cost-effective way to measure alkalinity in degrees of calcium hardness, commonly abbreviated as dKH. Critical to marine environments, alkalinity not only provides the carbonate ion required for calcium carbonate skeletal regeneration of coral reefs, but it also acts as a pH buffer against large changes in acidity. Designed as a more accurate alternative to chemical test kits, the HI772 provides quick, accurate results in four easy steps:
Features at-a-glance:
- Easier to use and more accurate than chemical test kits
- Dedicated to a single parameter
- Small size, big convenience
- Ideal for: Aquaculture & Aquariums, Water Quality
HI772 Checker® is supplied with (2) sample cuvettes with caps, alkalinity reagent starter kit for 25 tests (1 bottle of alkalinity reagent), (1) 1 ml syringe and tip, ??? battery, instructions, and quick start guide.
| SKU | HI772 |
| Name | Marine Alkalinity (dKH) Checker® HC – HI772 |
| Seawater Alkalinity Range | 0.0 to 20.0 dKH |
| Seawater Alkalinity Resolution | 0.1 dKH |
| Seawater Alkalinity Accuracy | ?0.3 dKH ?5% of reading |
| Seawater Alkalinity Method | colorimetric method. |
| Photometer/Colorimeter Light Source | LED @ 610 nm |
| Photometer/Colorimeter Light Detector | silicon photocell |
| Battery Type/Life | (1) 1.5V AAA |
| Automatic Shut-Off | after ten minutes of non-use |
| Environment | 0 to 50?C (32 to 122?F); RH max 95% non-condensing |
| Weight | 64 g (2.25 oz.) |
| Dimensions | 86.0 mm x 61.0 mm x 37.5 mm (3.4 in. x 2.4 in. x 1.5 in.) |
Silica High-Range Checker® HC - HI770
The HI770 Checker® HC (Handheld Colorimeter) provides a simple, accurate and cost-effective way to measure silica. Silica is found in all natural surface and saline waters in the dissolved form. Due to the potential to cause scaling, it is undesirable and therefore monitored in industrial applications, and heating and reverse osmosis systems. Designed as a more accurate alternative to chemical test kits, the HI770 provides quick, accurate results in four easy steps:
Features at-a-glance:
- Easier to use and more accurate than chemical test kits
- Dedicated to a single parameter
- Small size, big convenience
- Ideal for: Water Quality, Environmental, Industrial, Aquariums
HI770 Checker® is supplied with (2) sample cuvettes with caps, silica HR reagent starter kit for 6 tests (6 powder reagent packets), battery, instructions and quick start guide.
| SKU | HI770 |
| Name | Silica High-Range Checker® HC – HI770 |
| Silica Range | 0 to 200 ppm |
| Silica Resolution | 1 ppm |
| Silica Accuracy | ?2 ppm ?5% of reading |
| Silica Method | adaptation of the USEPA method 370.1 for drinking, surface and saline waters and Standard Method 4500-SiO? C for domestic and industrial waters. |
| Photometer/Colorimeter Light Source | LED @ 470 nm |
| Photometer/Colorimeter Light Detector | silicon photocell |
| Battery Type/Life | (1) 1.5V AAA |
| Automatic Shut-Off | after ten minutes of non-use |
| Environment | 0 to 50?C (32 to 122?F); RH max 95% non-condensing |
| Weight | 64 g (2.25 oz.) |
| Dimensions | 81.5mm x 61mm x 37.5mm (3.2 in. x 2.4 in. x 1.5”) |
Marine Low-Range Nitrite Checker HC – HI767
The contoured style of these Checker®’s fit in your palm and pocket perfectly and the large LCD is easy to read. The auto shut-off feature assures the battery life will not be drained if you forget to turn it off.
HI767 Checker® is supplied with (2) sample cuvettes with caps, nitrite low-range reagent starter kit for 6 tests (6 powder reagent packets), battery, instructions and quick start guide.
| SKU | HI767 |
| Name | Marine Low-Range Nitrite Checker HC ? HI767 |
| Nitrite Range | 0 to 999 ppb (as NO2?N) |
| Nitrite Resolution | 1 ppb |
| Nitrite Accuracy | ?10 ppb ? 4% of reading |
| Nitrite Method | adaptation of the EPA Diazotization method 354.1 |
| Photometer/Colorimeter Light Source | LED @ 470 nm |
| Photometer/Colorimeter Light Detector | silicon photocell |
| Battery Type/Life | (1) 1.5V AAA |
| Automatic Shut-Off | after 20 minutes of non-use and 4 minutes after reading |
| Environment | 0 to 50?C (32 to 122?F); RH max 95% non-condensing |
| Weight | 64 g (2.25 oz.) |
| Dimensions | 86.0 mm x 61.0 mm x 37.5mm (3.2 in. x 2.4 in. x 1.5”) |
Marine Nitrite Ultra Low-Range Checker® HC - HI764
Nitrification is the biological oxidation of ammonia (ammonium ion) into nitrite followed by the oxidation of the nitrites to nitrates. The first step of this 2-step process is carried out in an aquarium by nitrifying bacteria. During this quick process, the ammonium levels drop while the nitrite levels increase. Since nitrite is just as harmful as ammonia, nitrite levels should be maintained at immeasurable levels. A mature biological filter should be able to keep nitrite levels low. Also, if tap water is to be used in an aquarium, it is recommended that it be tested for phosphate, as well as silicate, ammonia, nitrate, nitrite, pH, and alkalinity.
The HI764 Checker® Handheld Colorimeter bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits are not very accurate, while professional instrumentation can cost hundreds of dollars and can be time-consuming to calibrate and maintain. Hanna Checker®’s are accurate, affordable and easy to use.
To begin measurements, first, zero the instrument with your water sample. Next, add the reagent. Last, place the vial into the Checker®, press the button and read the results. It’s that easy.
The contoured style of these Checker®’s fit in your palm and pocket perfectly and the large LCD is easy to read. The auto shut-off feature assures the battery life will not be drained if you forget to turn it off.
Features at-a-glance:
- Easier to use and more accurate than chemical test kits
- Dedicated to a single parameter
- Small size, big convenience
- Ideal for: Water quality, Environmental, Plating, Education
? HI2004 includes benchtop docking station with electrode holder, wall mount cradle, USB cable, HI 764080 Dissolved Oxygen electrode, HI 7041S Refill electrolyte solution, 2 DO membrane caps, 2 DO membrane cap O-rings, 5 VDC power adapter, and instruction.
| SKU | HI2004-01 |
| Name | ? Dedicated Dissolved Oxygen Meter – HI2004 |
| Dissolved Oxygen Measurement Type | polarographic |
| Dissolved Oxygen Range | 0.00 to 45.00 ppm (mg/L), 0.0 up to 300.0% saturation |
| Dissolved Oxygen Resolution | 0.01 ppm (mg/L); 0.1% saturation |
| Dissolved Oxygen Accuracy | ?1 digit; ?1.5% of reading |
| Dissolved Oxygen Calibration | one or two points at 0% (HI 7040 solution) and 100% (in air) |
| Dissolved Oxygen Temperature Compensation | ATC: 0 to 50 ?C; 32.0 to 122.0 ?F |
| Salinity Compensation | 0 to 40 g/L (with 1 g/L resolution) |
| Altitude Compensation | -500 to 4000 m (with 100 m resolution) |
| Temperature Range | -20.0 to 120.0 ?C ; -4.0 to 248.0 ?F** |
| Temperature Resolution | 0.1 ?C; 0.1 ?F |
| Temperature Accuracy | ?0.5 ?C, ?0.9 ?F |
| DO Probe | HI764080 (included) |
| Logging Type | Manual log-on-demand (Max. 200 logs); Manual log-on-stability (Max. 200 logs); Interval logging *** (Max. 600 samples; 100 lots) |
| Logging Memory | up to 1000*** records |
| Connectivity | 1 micro USB port for charging and PC connectivity, 1 USB port for storage |
| GLP | Yes |
| Battery Type/Life | Built-in rechargeable battery with up to 8 hours of continuous use |
| Power Supply | 5 VDC adapter (included) |
| Environment | 0 to 50?C (32 to 122?F), RH max 95% non-condensing |
| Dimensions | 202 x 140 x 12.7mm (8” x 5.5” x 0.5”) |
| Weight | 250 g (8.82 oz) |
Free Chlorine Ultra Low-Range Checker® HC - HI762
The HI762 Checker®HC (Handheld Colorimeter) provides a simple, accurate and cost effective way to measure free chlorine. Chlorine is a popular disinfectant used in municipal water, fruits and vegetables, as well as equipment in the food and beverage industry. Though beneficial in destroying pathogens, levels greater than 4 parts per million (ppm) is harmful to humans and therefore, must be monitored. Designed as a more accurate alternative to chemical test kits, the HI762 provides quick, accurate results in four easy steps:
Features at-a-glance:
- Easier to use and more accurate than chemical test kits
- Dedicated to a single parameter
- Small size, big convenience
- Ideal for: Water Quality, Education, Industrial, Pool and Spa
HI762 Checker® is supplied with (2) sample cuvettes with caps, free ULR chlorine reagent starter kit for 6 tests (6 powder reagent packets), battery, instructions and quick start guide.
| SKU | HI762 |
| Name | Free Chlorine Ultra Low-Range Checker® HC – HI762 |
| Free Chlorine Range | 0 to 500 ppb |
| Free Chlorine Resolution | 1 ppb |
| Free Chlorine Accuracy | ?20 ppb ?4% of reading |
| Chlorine Method | adaptation of USEPA method 330.5, DPD method. |
| Photometer/Colorimeter Light Source | LED @ 525 nm |
| Photometer/Colorimeter Light Detector | silicon photocell |
| Battery Type/Life | (1) 1.5V AAA |
| Automatic Shut-Off | after ten minutes of non-use |
| Environment | 0 to 50?C (32 to 122?F); RH max 95% non-condensing |
| Weight | 64 g (2.25 oz.) |
| Dimensions | 81.5mm x 61mm x 37.5mm (3.2 in. x 2.4 in. x 1.5”) |
Total Chlorine Ultra Low-Range Checker® HC - HI761
The HI761 Checker® HC (Handheld Colorimeter) provides a simple, accurate and cost-effective way to measure total chlorine. Chlorine is a popular disinfectant used in municipal water, fruits, and vegetables, as well as equipment in the food and beverage industry. Though beneficial in destroying pathogens, levels greater than 4 parts per million (ppm) is harmful to humans and therefore, must be monitored. Designed as a more accurate alternative to chemical test kits, the HI761 provides quick, accurate results in four easy steps:
Features at-a-glance:
- Easier to use and more accurate than chemical test kits
- Dedicated to a single parameter
- Small size, big convenience
- Ideal for: Water Quality, Education, Industrial, Pool and Spa
HI761 Checker® is supplied with (2) sample cuvettes with caps, total ULR chlorine reagent starter kit for 6 tests (6 powder reagent packets), battery, instructions and quick start guide.
| SKU | HI761 |
| Name | Total Chlorine Ultra Low-Range Checker® HC – HI761 |
| Total Chlorine Range | 0 to 500 ppb |
| Total Chlorine Resolution | 1 ppb |
| Total Chlorine Accuracy | ?5 ppb ?5% of reading |
| Chlorine Method | adaptation of USEPA method 330.5, DPD method. |
| Photometer/Colorimeter Light Source | LED @ 525 nm |
| Photometer/Colorimeter Light Detector | silicon photocell |
| Battery Type/Life | (1) 1.5V AAA |
| Automatic Shut-Off | after ten minutes of non-use |
| Environment | 0 to 50?C (32 to 122?F); RH max 95% non-condensing |
| Weight | 64 g (2.25 oz.) |
| Dimensions | 81.5mm x 61mm x 37.5mm (3.2 in. x 2.4 in. x 1.5”) |
Maple Syrup Digital Grader - HI759
The season of maple syrup production spans several months between winter and spring each year. As the days get warmer and the nights stay below freezing, the sap from maple trees begins to flow and tapping begins. At the beginning of production season, the sap produces a lighter, sweeter syrup comprised of sucrose as the main sugar content. As the season progresses and temperatures rise, microorganisms grow and colonize the sap as it is collected. These bacteria, while not harmful, convert part of the sucrose present into invert sugars, glucose and fructose. The level of invert sugars in the sap, as well as the chemical processes that occur during boiling, are responsible for creating a darker and stronger flavored syrup product.
Maple syrup grading standards for the United States and Canada are identical, allowing consumers to easily distinguish between the different grades of syrup, regardless of the place of origin. Grade A maple syrup is classified into four distinct categories:
The HI759 Maple Syrup Digital Grader is a handheld colorimeter designed for quick, accurate determination of Grade A maple syrup. The HI759 is designed as a more accurate alternative to temporary and permanent visual grading kits, providing quick, accurate results in four easy steps.
Step One – Add a sample to the included cuvette(s). Step Two – Insert the glycerol reference cuvette, close the lid, and press the button to zero. Step Three – Remove the glycerol reference cuvette and replace with a sample cuvette. Step Four– Close the lid and press the button. Reading will be taken automatically and the results displayed in percent light transmittance.
This Maple Syrup Digital Grader measures the light transmittance of the syrup and directly displays the percentage results on the large, easy to read LCD display. Located on the back of the meter is a chart referencing the percent light transmittance to the grade. Eliminating the subjectivity of grading by eye and the potential for mislabeling, the HI759 is grading made simple.
Features at-a-glance:
- Easier to use and more accurate than visual grading kits
- Small size, big convenience
- Ideal for maple syrup producers and packers
HI759 Checker® is supplied with (3) sample cuvettes with caps, sealed glycerol reference cuvette, (3) plastic beakers, battery, instructions, and quick start guide.
| SKU | HI770 |
| Name | Silica High-Range Checker® HC – HI770 |
| Silica Range | 0 to 200 ppm |
| Silica Resolution | 1 ppm |
| Silica Accuracy | ?2 ppm ?5% of reading |
| Silica Method | adaptation of the USEPA method 370.1 for drinking, surface and saline waters and Standard Method 4500-SiO? C for domestic and industrial waters. |
| Photometer/Colorimeter Light Source | LED @ 470 nm |
| Photometer/Colorimeter Light Detector | silicon photocell |
| Battery Type/Life | (1) 1.5V AAA |
| Automatic Shut-Off | after ten minutes of non-use |
| Environment | 0 to 50?C (32 to 122?F); RH max 95% non-condensing |
| Weight | 64 g (2.25 oz.) |
| Dimensions | 81.5mm x 61mm x 37.5mm (3.2 in. x 2.4 in. x 1.5”) |
Marine Alkalinity Checker® HC - HI755
The HI755 Checker®HC (Handheld Colorimeter) provides a simple, accurate and cost-effective way to measure alkalinity. Crucial in marine environments, alkalinity provides both the carbonate ion required for calcium carbonate skeletal regeneration of coral reefs, as well as a pH buffer against large changes in acidity. Designed as a more accurate alternative to chemical test kits, the HI755 provides quick, accurate results in four easy steps:
Features at-a-glance:
- Easier to use and more accurate than chemical test kits
- Dedicated to a single parameter
- Small size, big convenience
- Ideal for: Water Quality, Environmental, Education, Industrial
HI755 Checker® is supplied with (2) sample cuvettes with caps, alkalinity reagent starter kit for 25 tests (1 bottle of alkalinity reagent), ???(1) battery, instructions and quick start guide.
| SKU | HI755 |
| Name | Marine Alkalinity Checker® HC – HI755 |
| Seawater Alkalinity Range | 0 to 300 ppm |
| Seawater Alkalinity Resolution | 1 ppm |
| Seawater Alkalinity Accuracy | ?5 ppm (mg/L) ?5% of reading |
| Seawater Alkalinity Method | colorimetric method. |
| Photometer/Colorimeter Light Source | LED @ 610 nm |
| Photometer/Colorimeter Light Detector | silicon photocell |
| Battery Type/Life | (1) 1.5V AAA |
| Automatic Shut-Off | after ten minutes of non-use |
| Environment | 0 to 50?C (32 to 122?F); RH max 95% non-condensing |
| Weight | 64 g (2.25 oz.) |
| Dimensions | 81.5mm x 61mm x 37.5mm (3.2 in. x 2.4 in. x 1.5”) |
Chloride Checker® HC - HI753
The HI753 Checker® HC (Handheld Colorimeter) provides a simple, accurate and cost-effective way to measure chloride. As one of the most common anions found in water and wastewater, chloride may have adverse effects on taste, corrode stainless steel, damage metal components in boiler systems, and is toxic to aquatic life. Designed as a more accurate alternative to chemical test kits, the HI753 provides quick, accurate results in four easy steps:
Features at-a-glance:
- Easier to use and more accurate than chemical test kits
- Dedicated to a single parameter
- Small size, big convenience
- Ideal for: Water Quality, Environmental, Education, Industrial
HI753 Checker®HC is supplied with 2 cuvettes and caps, reagent starter kit (6 packets of reagent), (2) 1 mL Syringes with Tips, (1) 1.5X AAA battery, and an instruction manual.
| SKU | HI753 |
| Name | Chloride Checker® HC – HI753 |
| Chloride Range | 0.0 to 20.0 ppm |
| Chloride Resolution | 0.1 ppm |
| Chloride Accuracy | ?6% of reading ? 0.5 ppm |
| Chloride Method | adaptation of the mercury(II) thiocyanate method. |
| Photometer/Colorimeter Light Source | LED @ 470 nm |
| Photometer/Colorimeter Light Detector | silicon photocell |
| Battery Type/Life | (1) 1.5V AAA |
| Automatic Shut-Off | after ten minutes of non-use |
| Environment | 0 to 50?C (32 to 122?F); RH max 95% non-condensing |
| Weight | 64 g (2.25 oz.) |
| Dimensions | 86.0 mm x 61.0 mm x 37.5 mm (3.4 in. x 2.4 in. x 1.5 in.) |
Chromium VI Low-Range Checker/Tester - HI749
The HI749 Checker® HC (Handheld Colorimeter) provides a simple, accurate and cost-effective way to measure chromium VI. Due to its corrosion-resistant properties, hexavalent chromium plays an important part in the plating industry and cooling towers. However, due to its toxic and carcinogenic nature, chromium VI must be must be sufficiently treated prior to wastewater discharge. Designed as a more accurate alternative to chemical test kits, the HI749 provides quick, accurate results in four easy steps:
Features at-a-glance:
- Easier to use and more accurate than chemical test kits
- Dedicated to a single parameter
- Small size, big convenience
- Ideal for: Water Quality, Education, Industrial, Municipal Water
HI749 Checker® is supplied with (2) sample cuvettes with caps, chromium VI LR reagent starter kit for 6 tests (6 powder reagent packets), battery, instructions and quick start guide.
| SKU | HI749 |
| Name | Chromium VI Low-Range Checker/Tester – HI749 |
| Chromium, Hexavalent Range | 0 to 300 ppb |
| Chromium, Hexavalent Resolution | 1 ppb |
| Chromium, Hexavalent Accuracy | ?3 ppb ?5% of reading |
| Chromium, Hexavalent Method | adaptation of the ASTM, Manual of Water and Environmental Technology, D 1687-92, Diphenylcarbohydrazide method. |
| Photometer/Colorimeter Light Source | LED @ 525 nm |
| Photometer/Colorimeter Light Detector | silicon photocell |
| Battery Type/Life | (1) 1.5V AAA |
| Automatic Shut-Off | after ten minutes of non-use |
| Environment | 0 to 50?C (32 to 122?F); RH max 95% non-condensing |
| Weight | 64 g (2.25 oz.) |
| Dimensions | 81.5mm x 61mm x 37.5mm (3.2 in. x 2.4 in. x 1.5”) |
Copper Low-Range Checker® HC
The HI747 Checker®HC (Handheld Colorimeter) is a simple, accurate, and cost-effective way to measure low ranges of copper. Designed as a more accurate alternative to chemical test kits, the HI747 provides quick, accurate results in four easy steps:
Features at-a-glance:
- Easier to use and more accurate than chemical test kits
- Dedicated to a single parameter
- Small size, big convenience
- Ideal for: Water quality, Environmental, Plating, Education
HI747 Checker®HC is supplied with 2 cuvettes and caps, reagents for 6 tests, 1 X 1.5V AAA battery, and an instruction manual.
| SKU | HI747 |
| Name | Copper Low-Range Checker® HC |
| Copper Range | 0 to 999 ppb |
| Copper Resolution | 1 ppb |
| Copper Accuracy | ?5% of reading ? 10 ppb |
| Copper Method | adaptation of the EPA method. The reaction between copper and the bicinchoninate reagent causes a purple tint in the sample. |
| Photometer/Colorimeter Light Source | LED @ 575 nm |
| Photometer/Colorimeter Light Detector | silicon photocell |
| Battery Type/Life | (1) 1.5V AAA |
| Automatic Shut-Off | after ten minutes of non-use |
| Environment | 0 to 50?C (32 to 122?F); RH max 95% non-condensing |
| Weight | 64 g (2.25 oz.) |
| Dimensions | 86.0 mm x 61.0 mm x 37.5 mm (3.4 in. x 2.4 in. x 1.5 in.) |
Iron Low-Range Checker® HC - HI746
The HI746 Checker®HC (Handheld Colorimeter) is a simple, accurate and cost-effective way to measure iron in the low range. Naturally present in water in low concentrations, iron may affect the taste of water, as well as stain both laundry and household appliances. Also an indicator of corrosion, iron is monitored in industrial plants and water cooling and heating systems. Designed as a more accurate alternative to chemical test kits, the HI746 provides quick, accurate results in four easy steps:
Features at-a-glance:
- Easier to use and more accurate than chemical test kits
- Dedicated to a single parameter
- Small size, big convenience
- Ideal for:Water Quality, Education, Industrial, Municipal Water, Aquarium
HI746 Checker® is supplied with (2) sample cuvettes with caps, reagents for starter kit for 25 tests, (2) 25 mL glass cylinders with caps, cloth for wiping cuvettes, battery, instructions manual and quick reference.?
| SKU | HI746 |
| Name | Iron Low-Range Checker® HC – HI746 |
| Iron Range | 0 to 999 ppb |
| Iron Resolution | 1 ppb |
| Iron Accuracy | ?20 ppb ?5% of reading |
| Iron Method | adaptation of the TPTZ method. |
| Photometer/Colorimeter Light Source | LED @ 575 nm |
| Photometer/Colorimeter Light Detector | silicon photocell |
| Battery Type/Life | (1) 1.5V AAA |
| Automatic Shut-Off | after ten minutes of non-use |
| Environment | 0 to 50?C (32 to 122?F); RH max 95% non-condensing |
| Weight | 64 g (2.25 oz.) |
| Dimensions | 86.0 mm x 61.0 mm x 37.5 mm (3.4 in. x 2.4 in. x 1.5 in.) |
Fluoride High-Range Checker® HC - HI739
The HI739 Checker® HC (Handheld Colorimeter) provides a simple, accurate and cost-effective way to measure fluoride.
Fluoride is one of the very few chemicals that have been shown to cause significant effects in people through drinking water. Fluoride has beneficial effects on teeth at low concentrations in drinking water, but excessive exposure to fluoride in drinking water, or in combination with exposure to fluoride from other sources, can give rise to a number of adverse effects.
Water fluoridation is the controlled addition of fluoride to a public water supply to reduce tooth decay. Fluoridated water operates on tooth surfaces: in the mouth, it creates low levels of fluoride in saliva, which reduces the rate at which tooth enamel demineralizes and increases the rate at which it remineralizes in the early stages of cavities. A 1994 World Health Organization expert committee suggested a level of fluoride from 0.5 to 1.0 mg/L, depending on climate. Bottled water typically has unknown fluoride levels, and some domestic water filters remove some or all fluoride.
Designed as a more accurate alternative to chemical test kits, the HI739 provides quick, accurate results in four easy steps:
* To zero, mix 2 ml of Reagent A and 8 ml of Reagent B; gently invert 5 times, and wait 1 minute before inserting in the meter and pressing the button.
Features at-a-glance:
- Easier to use and more accurate than chemical test kits
- Dedicated to a single parameter
- Small size, big convenience
- Ideal for: Drinking Water, Environmental, Industrial
HI739 Checker® is supplied with (2) sample cuvettes with caps, fluoride HR reagent starter kit for 15 tests (1 bottle of fluoride HR reagent A, 1 bottle of fluoride HR reagent B), (2) 1 mL syringe with tip, pipette, battery, and instructions.
| SKU | HI739 |
| Name | Fluoride High-Range Checker® HC – HI739 |
| Fluoride Range | 0.0 to 20.0 ppm |
| Fluoride Resolution | 0.1 ppm |
| Fluoride Accuracy | ?0.5 ppm ? 5% of reading |
| Fluoride Method | adaptation of the Standard Methods for the Examination of Water and Wastewater, 18th edition, SPADNS method. |
| Photometer/Colorimeter Light Source | LED @ 575 nm |
| Photometer/Colorimeter Light Detector | silicon photocell |
| Battery Type/Life | (1) 1.5V AAA |
| Automatic Shut-Off | after ten minutes of non-use |
| Environment | 0 to 50?C (32 to 122?F); RH max 95% non-condensing |
| Weight | 64 g (2.25 oz.) |
| Dimensions | 81.5mm x 61mm x 37.5mm (3.2 in. x 2.4 in. x 1.5”) |
Marine Phosphorus Ultra Low-Range Checker® HC - HI736
The HI736 Checker® HC (Handheld Colorimeter) provides a simple, accurate and cost-effective way to measure phosphorus in marine systems including reef tanks. Phosphorus is an important parameter to measure in aquaculture and aquariums; levels that are too high can lead to extensive algae growth, depleted dissolved oxygen levels, and ultimately can be fatal to many types of fish and aquatic life. Designed as a more accurate alternative to chemical test kits, the HI736 provides quick, accurate results in four easy steps:
Features at-a-glance:
- Easier to use and more accurate than chemical test kits
- Dedicated to a single parameter
- Small size, big convenience
- Ideal for: Aquariums, Environmental, Aquaculture, Water Quality
HI736 Checker® is supplied with (2) sample cuvettes with caps, phosphorus ULR reagent starter kit for 6 tests (6 powder reagent packets), battery, instructions and quick start guide.
| SKU | HI736 |
| Name | Marine Phosphorus Ultra Low-Range Checker® HC – HI736 |
| Phosphorous Range | 0 to 200 ppb |
| Phosphorous Resolution | 1 ppb |
| Phosphorous Accuracy | ?5 ppb ?5% of reading |
| Phosphorous Method | adaptation of the Standard Methods for the Examination of Water and Wastewater, 20th edition, Ascorbic-Acid method. |
| Photometer/Colorimeter Light Source | LED @ 525 nm |
| Photometer/Colorimeter Light Detector | silicon photocell |
| Battery Type/Life | (1) 1.5V AAA |
| Automatic Shut-Off | after three minutes of non-use and two minutes after reading |
| Environment | 0 to 50?C (32 to 122?F); RH max 95% non-condensing |
| Weight | 64 g (2.25 oz.) |
| Dimensions | 86.0mm x 61mm x 37.5mm (3.4 in. x 2.4 in. x 1.5”) |
Ammonia High-Range Checker® HC - HI733
The HI733 Checker® HC (Handheld Colorimeter) provides a simple, accurate and cost-effective way to measure ammonia. Present in water as a component of the nitrogen cycle, ammonia is excreted from animals and other organisms such as heterotrophic bacteria, actinomycetes, and fungi during the metabolism of proteins and amino acids. Generally present in small quantities in unpolluted waters, higher levels indicate organic pollution and is toxic to aquatic life. Designed as a more accurate alternative to chemical test kits, the HI733 provides quick, accurate results in four easy steps:
*1 ml of sample is added to a cuvette with 9 ml of reagent “B”. The cuvette is then placed in the meter and the button pressed to zero.
Features at-a-glance:
- Easier to use and more accurate than chemical test kits
- Dedicated to a single parameter
- Small size, big convenience
- Ideal for: Water Quality, Aquaculture, Education, Industrial
HI733 Checker® is supplied with (2) sample cuvettes with caps, ammonia reagent starter kit for 25 tests (1 bottle of HI733A-0 and 1 bottle of HI733B-0), battery, instructions and quick start guide.
| SKU | HI733 |
| Name | Ammonia High-Range Checker® HC – HI733 |
| Ammonia Range | 0.0 to 99.9 ppm as NH?? |
| Ammonia Resolution | 0.1 ppm |
| Ammonia Accuracy | ?1.0 ppm ?5% of reading |
| Ammonia Method | adaptation of the ASTM Manual of Water and Environmental Technology D1426-92, Nessler Method. The reaction between ammonia and reagents causes a yellow tint in the sample. |
| Photometer/Colorimeter Light Source | LED @ 470 nm |
| Photometer/Colorimeter Light Detector | silicon photocell |
| Battery Type/Life | (1) 1.5V AAA |
| Automatic Shut-Off | after ten minutes of non-use |
| Environment | 0 to 50?C (32 to 122?F); RH max 95% non-condensing |
| Weight | 64 g (2.25 oz.) |
| Dimensions | 81.5mm x 61mm x 37.5mm (3.2 in. x 2.4 in. x 1.5”) |
Fluoride Low-Range Checker® HC - HI729
The HI729 Checker® HC (Handheld Colorimeter) provides a simple, accurate and cost-effective way to measure fluoride.
Fluoride is one of the few chemicals that have been shown to cause significant effects in people through drinking water. Fluoride has beneficial effects on teeth at low concentrations in drinking water, but excessive exposure to fluoride in drinking water, or in combination with exposure to fluoride from other sources, can give rise to a number of adverse effects.
Water fluoridation is the controlled addition of fluoride to a public water supply to reduce tooth decay. Fluoridated water operates on tooth surfaces: in the mouth, it creates low levels of fluoride in saliva, which reduces the rate at which tooth enamel demineralizes and increases the rate at which it remineralizes in the early stages of cavities. A 1994 World Health Organization expert committee suggested a level of fluoride from 0.5 to 1.0 mg/L, depending on climate. Bottled water typically has unknown fluoride levels, and some domestic water filters remove some or all fluoride.
The HI729 Checker® is simple to use. For this measurement you need 2 vials (#1 and #2); 2 mL of reagent is added in both vials. Deionized water is then added to vial #1 while the sample to be tested is added to vial #2. Both vials are then gently inverted 5 times, and wait 2 minutes. Cuvette #1 is then inserted into the HI729 Checker® and the button pressed to zero; after that, insert cuvette #2 to take a measurement.
Features at-a-glance:
- Easier to use and more accurate than chemical test kits
- Dedicated to a single parameter
- Small size, big convenience
- Ideal for: Drinking Water, Environmental, Industrial
HI729 Checker® is supplied with (2) sample cuvettes with caps, fluoride LR reagent starter kit for 5 tests (1 bottle of fluoride LR reagent, 30 mL), (1) 1 mL syringe with tip, battery, instructions and quick start guide.
| SKU | HI729 |
| Name | Fluoride Low-Range Checker® HC – HI729 |
| Fluoride Range | 0.00 to 2.00 ppm |
| Fluoride Resolution | 0.01 ppm |
| Fluoride Accuracy | ?0.10 ppm ?5% of reading |
| Fluoride Method | adaptation of the Standard Methods for the Examination of Water and Wastewater, 18th edition, SPADNS method. |
| Photometer/Colorimeter Light Source | LED @ 575 nm |
| Photometer/Colorimeter Light Detector | silicon photocell |
| Battery Type/Life | (1) 1.5V AAA |
| Automatic Shut-Off | after ten minutes of non-use |
| Environment | 0 to 50?C (32 to 122?F); RH max 95% non-condensing |
| Weight | 64 g (2.25 oz.) |
| Dimensions | 81.5mm x 61mm x 37.5mm (3.2 in. x 2.4 in. x 1.5”) |
Color of Water Checker® HC - HI727
The HI727 Checker®HC (Handheld Colorimeter) provides a simple, accurate and cost-effective way to measure the color of water. Used in drinking water and wastewater, the color of water may indicate the presence of undesirable and potentially harmful material, such as organic matter. Other harmless constituents of water such as tannins, iron and manganese, may also be present and impart color. The HI727 reports the color of water from 0-500 PCU (Platinum Cobalt Units).
Features at-a-glance:
- Easier to use and more accurate than chemical test kits
- Dedicated to a single parameter
- Small size, big convenience
- Ideal for: Water Quality, Environmental, Education
HI727 Checker® is supplied with (2) sample cuvettes with caps, battery, instructions and quick start guide.
| SKU | HI727 |
| Name | Color of Water Checker® HC – HI727 |
| Color, Water Range | 0 to 500 PCU |
| Color, Water Resolution | 5 PCU |
| Color, Water Accuracy | ?10 PCU ?5% of reading |
| Color, Water Method | adaptation of the Standard Methods for the Examination of Water and Wastewater, 21st edition, Colorimetric Platinum Cobalt method. |
| Photometer/Colorimeter Light Source | LED @ 470 nm |
| Photometer/Colorimeter Light Detector | silicon photocell |
| Battery Type/Life | (1) 1.5V AAA |
| Automatic Shut-Off | after ten minutes of non-use |
| Environment | 0 to 50?C (32 to 122?F); RH max 95% non-condensing |
| Weight | 64 g (2.25 oz.) |
| Dimensions | 81.5mm x 61mm x 37.5mm (3.2 in. x 2.4 in. x 1.5”) |
Pool Line High Range Iron Checker HC - HI7214
Many water sources can contain iron. The exact concentration will depend on geographic region and whether the water is from a lake, river, or groundwater. Groundwater will typically have the highest since minerals are picked up as rain percolates through the soil to the aquifers below. Iron in swimming pools, spas, and hot tubs present different problems. One problem is staining. Iron will be introduced in a reduced state and as it is exposed to air or other oxidizers, such has chlorine or bromine, the iron will be oxidized causing rust stains. The reaction of iron with oxidizers will create an increase demand for the oxidizers required to maintain a consistent disinfection level. A high demand in chorine could indicate an iron issue in which the water should either be pre-treated before adding to the body of water or treated by filtering it out.
HI7214 Pool Line Checker Handheld Colorimeter is designed for the measurement of iron in swimming pools, hot tubs, and spas within a 0.00 to 5.00 ppm (mg/L) range. The contoured style of these Checkers fit in your palm and pocket perfectly and the large LCD is easy to read. The auto shut-off feature assures the battery life will not be drained if you forget to turn it off.
To perform a measurement the instrument a water sample is placed into a cuvette and the meter is zeroed. Next, a reagent is added that will react with iron to produce an orange color. Last, place the vial into the Checker, press the button and read the results. It’s that easy.
HI7214 Checker HC is supplied with sample cuvettes with caps (2pcs. each), iron high range starter reagent kit (6 tests), 1.5VAAA battery (1), and instructions packaged into a carrying case.
| SKU | HI7214 |
| Name | Pool Line High Range Iron Checker HC – HI7214 |
| Iron Range | 0.00 to 5.00 ppm (as Fe) |
| Iron Resolution | 0.01 ppm |
| Iron Accuracy | ?0.04 ppm ?2% of reading |
| Iron Method | adaptation of the Standard Methods for the Examination of Water and Wastewater, 23rd Edition, 3500-Fe B, Phenanthroline Method. The reaction between iron and reagent causes an orange tint in the sample. |
| Photometer/Colorimeter Light Source | LED @ 525 nm |
| Photometer/Colorimeter Light Detector | silicon photocell |
| Battery Type/Life | 1.5V AAA |
| Automatic Shut-Off | After 10 minutes of non-use and 2 minutes after reading |
| Environment | 0 to 50?C (32 to 122?F); RH max 95% non-condensing |
| Weight | 64 g (2.3 oz.) |
| Dimensions | 86.0 mm x 61.0 mm x 37.5mm (3.2 x 2.4 x 1.5”) |
Calcium Hardness Checker® HC
The HI720 Checker®HC (Handheld Colorimeter) is a simple, accurate, and cost effective way to measure calcium. Designed as a more accurate alternative to chemical test kits, the HI720 provides quick, accurate results in four easy steps:
Features at-a-glance:
- Easier to use and more accurate than chemical test kits
- Dedicated to a single parameter
- Small size, big convenience
- Ideal for: Water quality, Environmental, Plating, Education
HI720 Checker®HC is supplied with 2 cuvettes and caps, reagent starter kit (6 packets of reagent), 1 X 1.5X AAA battery, and an instruction manual.
| SKU | HI720 |
| Name | Calcium Hardness Checker® HC |
| Hardness, Calcium Range | 0.00 to 2.70 ppm |
| Hardness, Calcium Resolution | 0.01 ppm |
| Hardness, Calcium Accuracy | ?5% of reading ? 0.20 ppm |
| Hardness, Calcium Method | adaptation of the Standard Methods for the Examination of Water and Wastewater, 18th edition, Calmagite method. The reaction between calcium and reagents causes a reddish-violet tint in the sample. |
| Photometer/Colorimeter Light Source | LED @ 525 nm |
| Photometer/Colorimeter Light Detector | silicon photocell |
| Battery Type/Life | (1) 1.5V AAA |
| Automatic Shut-Off | after ten minutes of non-use |
| Environment | 0 to 50?C (32 to 122?F); RH max 95% non-condensing |
| Weight | 64 g (2.25 oz.) |
| Dimensions | 81.5mm x 61mm x 37.5mm (3.2 in. x 2.4 in. x 1.5”) |
Magnesium Hardness Checker® HC - HI719
The HI719 Checker®HC (Handheld Colorimeter) is a simple, accurate, and cost effective way to measure magnesium hardness. Designed as a more accurate alternative to chemical test kits, the HI719 provides quick, accurate results in four easy steps:
Features at-a-glance:
- Easier to use and more accurate than chemical test kits
- Dedicated to a single parameter
- Small size, big convenience
- Ideal for: Water quality, Environmental, Plating, Education
HI719 Checker®HC is supplied with 2 cuvettes and caps, reagent starter kit (50 packets of reagent), 1 X 1.5X AAA battery, and an instruction manual.
| SKU | HI719 |
| Name | Magnesium Hardness Checker® HC – HI719 |
| Hardness, Magnesium Range | 0.00 to 2.00 ppm |
| Hardness, Magnesium Resolution | 0.01 ppm |
| Hardness, Magnesium Accuracy | ?5% of reading ? 0.20 ppm |
| Hardness, Magnesium Method | adaptation of the Standard Methods for the Examination of Water and Wastewater, 18th edition, EDTA colorimetric method. The reaction between magnesium and reagents causes a reddish-violet tint in the sample. |
| Photometer/Colorimeter Light Source | LED @ 525 nm |
| Photometer/Colorimeter Light Detector | silicon photocell |
| Battery Type/Life | (1) 1.5V AAA |
| Automatic Shut-Off | after ten minutes of non-use |
| Environment | 0 to 50?C (32 to 122?F); RH max 95% non-condensing |
| Weight | 64 g (2.25 oz.) |
| Dimensions | 86.0 mm x 61.0 mm x 37.5 mm (3.4 in. x 2.4 in. x 1.5 in.) |
Bromine Checker® HC - HI716
The HI716 Checker® HC (Handheld Colorimeter) provides a simple, accurate and cost effective way to measure bromine. Introduced as an alternative to chlorine, the use of bromine as a sanitizer is increasing in use in many countries. Bromine is less volatile and has more effective results above a pH of 7.4, but is an overall slower acting disinfectant. Designed as a more accurate alternative to chemical test kits, the HI716 provides quick, accurate results in four easy steps:
Features at-a-glance:
- Easier to use and more accurate than chemical test kits
- Dedicated to a single parameter
- Small size, big convenience
- Ideal for: Water Quality, Industrial, Municipal Water, Pool and Spa
HI716 Checker® is supplied with (2) sample cuvettes with caps, bromine reagent starter kit for 6 tests (6 powder reagent packets), battery, instructions and quick start guide.
| SKU | HI716 |
| Name | Bromine Checker® HC – HI716 |
| Bromine Range | 0.00 to 8.00 ppm |
| Bromine Resolution | 0.01 ppm |
| Bromine Accuracy | ?0.08 ppm ?5% of reading @ 25 ℃ |
| Bromine Method | adaptation of the Standard Methods for the Examination of Water and Wastewater, 18th edition, DPD method. The reaction between bromine and the reagent causes a pink tint in the sample. |
| Photometer/Colorimeter Light Source | LED @ 525 nm |
| Photometer/Colorimeter Light Detector | silicon photocell |
| Battery Type/Life | (1) 1.5V AAA |
| Automatic Shut-Off | after ten minutes of non-use |
| Environment | 0 to 50?C (32 to 122?F); RH max 95% non-condensing |
| Weight | 64 g (2.25 oz.) |
| Dimensions | 86.0mm x 61mm x 37.5mm (3.4 in. x 2.4 in. x 1.5”) |
Ammonia Medium-Range Checker® HC - HI715
The HI715 Checker® HC (Handheld Colorimeter) is a simple, accurate and cost effective way to measure ammonia. Present in water as a component of the nitrogen cycle, ammonia is excreted from animals and other organisms such as heterotrophic bacteria, actinomycetes, and fungi during the metabolism of proteins and amino acids. Generally present in small quantities in unpolluted waters, higher levels indicate organic pollution, and is toxic to aquatic life. Designed as a more accurate alternative to chemical test kits, the HI715 provides quick, accurate results in four easy steps:
Features at-a-glance:
- Easier to use and more accurate than chemical test kits
- Dedicated to a single parameter
- Small size, big convenience
- Ideal for: Water Quality, Environmental, Plating, Education
HI715 Checker® is supplied with (2) sample cuvettes with caps, ammonia reagent starter kit for 25 tests (1 bottle of HI715A-0 and 1 bottle of HI715B-0), ???battery, instructions and quick start guide.
| SKU | HI715 |
| Name | Ammonia Medium-Range Checker® HC – HI715 |
| Ammonia Range | 0.00 to 9.99 ppm NH?-N |
| Ammonia Resolution | 0.01 ppm |
| Ammonia Accuracy | ?0.05 ppm ?5% of reading |
| Ammonia Method | adaptation of the ASTM Manual of Water and Environmental Technology D1426-92, Nessler Method. The reaction between ammonia and reagents causes a yellow tint in the sample. |
| Photometer/Colorimeter Light Source | LED @ 470 nm |
| Photometer/Colorimeter Light Detector | silicon photocell |
| Battery Type/Life | (1) 1.5V AAA |
| Automatic Shut-Off | after ten minutes of non-use |
| Environment | 0 to 50?C (32 to 122?F); RH max 95% non-condensing |
| Weight | 64 g (2.25 oz.) |
| Dimensions | 81.5mm x 61mm x 37.5mm (3.2 in. x 2.4 in. x 1.5”) |
Pool Line Phosphate Low Range Checker® HC Calibration Check Set - HI7134-11
HI7134-11 is a high-quality set of calibration standards that allows users to validate the performance HI7134 Pool Line Phosphate Low Range Checker® HC. The HI7134-11 includes one sealed cuvette for zeroing the meter and one cuvette that contains a standard with a value of 1.00 ±0.08 ppm phosphate sample @ 25℃. The calibration check set is produced in our state-of-the-art manufacturing facility using reagent grade chemicals in a temperature-controlled environment.
The HI7134-11 is Supplied with Certificate of Analysis
- Product code
- Lot number
- Expiration date
HI7134-11 is supplied with HI7134-11A ? phosphate low range certified standard cuvette – A (1 pc.), HI7134-11B ? phosphate low range certified standard cuvette ? B (1 pc.), HI7134-0 phosphate reagent (1 pc.), certificate of analysis, and instruction for use.
| SKU | HI7134-11 |
| Name | Pool Line Phosphate Low Range Checker® HC Calibration Check Set – HI7134-11 |
Pool Line Low Range Phosphate Checker HC - HI7134
HI7134 Pool Line Checker HC is designed for the measurement of low levels of phosphate in swimming pools, hot tubs, and spas. The HI7134 can measure phosphate from 0.00 to 2.50 ppm (as PO43-). Phosphate can be introduced into a swimming pool by either the water that is being added or the breakdown of organic materials such as leaves and grass clippings. Phosphate is commonly added to municipal drinking water to minimize the corrosion of pipes in the distribution system. At high levels phosphate is a nutrient that encourages algae growth. From pool companies, it is recommend to keep phosphate less than 1000 ppb (1.0 ppm) to prevent algae from growing. The water can be treated with chemicals to remove phosphate and the HI7134 Pool Line Checker can be used to monitor and track changes to the phosphate level.
The contoured style of this Checker HC fits in the palm of your and the large LCD is easy to read. The auto shut-off feature assures the battery life will not be drained if you forget to turn it off.
To perform a measurement the instrument a water sample is placed into a cuvette and the meter is zeroed. Next, a reagent is added that will react with phosphate to produce a blue color. Last, place the vial into the Checker HC, press the button and read the results. It’s that easy.
HI7134 Checker HC is supplied with sample cuvettes with caps (2 pcs.), phosphate low range reagent starter kit (6 tests), 1.5VAAA battery (1 pc), and instructions that are packaged into a plastic case.
| SKU | HI7134 |
| Name | Pool Line Low Range Phosphate Checker HC – HI7134 |
| Phosphate Range | 0.00 to 2.50 ppm (as PO43-) |
| Phosphate Resolution | 0.01 ppm |
| Phosphate Accuracy | ?0.04 ppm ? 4% of reading |
| Phosphate Method | adaptation of Standard Methods for the Examination of Water and Wastewater, 20th Edition, Ascorbic Acid Method. The reaction between phosphate and the reagent causes a blue tint in the sample. |
| Photometer/Colorimeter Light Source | LED @ 525 nm |
| Photometer/Colorimeter Light Detector | silicon photocell |
| Battery Type/Life | 1.5V AAA |
| Automatic Shut-Off | after 10 minutes of non-use and 2 minutes after reading |
| Environment | 0 to 50?C (32 to 122?F); RH max 95% non-condensing |
| Weight | 64 g (2.3 oz.) |
| Dimensions | 86.0 mm x 61.0 mm x 37.5mm (3.2 x 2.4 x 1.5”) |
Manganese High-Range Checker® HC - HI709
The HI709 Checker®HC (Handheld Colorimeter) is a simple, accurate, and cost effective way to measure manganese. Designed as a more accurate alternative to chemical test kits, the HI709 provides quick, accurate results in four easy steps:
Features at-a-glance:
- Easier to use and more accurate than chemical test kits
- Dedicated to a single parameter
- Small size, big convenience
- Ideal for: Water quality, Environmental, Plating, Education
HI709 Checker®HC is supplied with 2 cuvettes and caps, reagent starter kit (6 packets of reagent), 1 X 1.5X AAA battery, and an instruction manual.
| SKU | HI709 |
| Name | Manganese High-Range Checker® HC – HI709 |
| Manganese Range | 0.0 to 20.0 ppm |
| Manganese Resolution | 0.1 ppm |
| Manganese Accuracy | ?5% of reading ? 0.2 ppm |
| Manganese Method | adaptation of the Standard Methods for the Examination of Water and Wastewater, 18th edition, Periodate method. The reaction between manganese and reagents causes a pink tint in the sample |
| Photometer/Colorimeter Light Source | LED @ 525 nm |
| Photometer/Colorimeter Light Detector | silicon photocell |
| Battery Type/Life | (1) 1.5V AAA |
| Automatic Shut-Off | after ten minutes of non-use |
| Environment | 0 to 50?C (32 to 122?F); RH max 95% non-condensing |
| Weight | 64 g (2.25 oz.) |
| Dimensions | 81.5mm x 61mm x 37.5mm (3.2 in. x 2.4 in. x 1.5”) |
Pool Line High Range Copper Checker HC Calibration Check Set - HI7024-11
HI7024-11 is a high-quality set of calibration standards that allows users to validate the performance HI7024 Pool Line High Range Copper Checker® HC. The HI7024-11 includes one sealed cuvette for zero ppm free chlorine and one cuvette that is tinted to an equivalent 2.00 ±0.10 ppm copper sample @ 25℃. The calibration check set is produced in our state-of-the-art manufacturing facility using reagent grade chemicals in a temperature-controlled environment.
The HI7024-11 is
Supplied with Certificate of Analysis
- Product code
- Lot number
- Expiration date
HI7024-11 is supplied with HI7024-11A – copper certified standard cuvette – A (1 pc.), HI7024-11B – copper certified standard cuvette ? B (1 pc.), certificate of analysis, and instruction for use.
| SKU | HI7024-11 |
| Name | Pool Line High Range Copper Checker HC Calibration Check Set – HI7024-11 |
Copper High-Range Checker® HC
The HI702 Checker®HC (Handheld Colorimeter) is a simple, accurate, and cost effective way to measure high ranges of copper. Designed as a more accurate alternative to chemical test kits, the HI702 provides quick, accurate results in four easy steps:
Features at-a-glance:
- Easier to use and more accurate than chemical test kits
- Dedicated to a single parameter
- Small size, big convenience
- Ideal for: Water quality, Environmental, Plating, Education
HI702 Checker®HC is supplied with 2 cuvettes and caps, reagent starter kit (6 packets of reagent), 1 X 1.5X AAA battery, and an instruction manual.
| SKU | HI702 |
| Name | Copper High-Range Checker® HC |
| Copper Range | 0.00 to 5.00 ppm |
| Copper Resolution | 0.01 ppm |
| Copper Accuracy | ?0.05 ppm ?5% of reading |
| Copper Method | adaptation of the EPA method. The reaction between copper and the bicinchoninate reagent causes a purple tint in the sample |
| Photometer/Colorimeter Light Source | LED @ 575 nm |
| Photometer/Colorimeter Light Detector | silicon photocell |
| Battery Type/Life | (1) 1.5V AAA |
| Automatic Shut-Off | after ten minutes of non-use |
| Environment | 0 to 50?C (32 to 122?F); RH max 95% non-condensing |
| Weight | 64 g (2.25 oz.) |
| Dimensions | 81.5mm x 61mm x 37.5mm (3.2 in. x 2.4 in. x 1.5”) |
Pool Line Free Chlorine Checker HC Reagents (25 Tests) - HI7014-25
HI7014-25 Pool Line Free Chlorine Checker HC Reagents are high-quality reagents that are pre-measured, allowing users to achieve fast and accurate measurements with the HI7014 Free Chlorine Checker® HC. These reagents follow the DPD Method in which the reaction between chlorine and reagent causes a pink tint in the sample. By simply adding the packet of HI7014-25 reagent to the sample, the reaction will take place and the HI7014 will determine the concentration from the color that is produced. The results will be displayed in ppm (mg/L) of free chlorine. HI7014-25 Pool Line Free Chlorine Checker HC Reagents are designed to be used when measuring swimming pool, hot tub, or spa water that has an expected range of 0.00 to 2.50 ppm free chlorine.
| SKU | HI7014-25 |
| Name | Pool Line Free Chlorine Checker HC Reagents (25 Tests) – HI7014-25 |
| Package | Packets |
| Quantity | 25 tests |
| Method | adaptation of the USEPA method 330.5 and Standard Method 4500-Cl G. The reaction between chlorine and the DPD reagent causes a pink tint in the sample. |
Pool Line Free Chlorine Checker HC Calibration Check Set - HI7014-11
HI7024-11 is a high-quality set of calibration standards that allows users to validate the performance HI7024 Pool Line High Range Copper Checker® HC. The HI7024-11 includes one sealed cuvette for zero ppm free chlorine and one cuvette that is tinted to an equivalent 2.00 ±0.10 ppm copper sample @ 25℃. The calibration check set is produced in our state-of-the-art manufacturing facility using reagent grade chemicals in a temperature-controlled environment.
The HI7024-11 is
Supplied with Certificate of Analysis
- Product code
- Lot number
- Expiration date
HI7014-11 is supplied with HI7014-11A – free chlorine certified standard cuvette – A (1), HI701-11B – free chlorine certified standard cuvette ? B (1), certificate of analysis, and instruction for use.
| SKU | HI7014-11 |
| Name | Pool Line Free Chlorine Checker HC Calibration Check Set – HI7014-11 |
Pool Line Free Chlorine Checker HC - HI7014
Chlorine is a strong oxidizing agent that is used to keep bodies of water safe from bacterial contamination. Free Chlorine in a swimming pool is usually kept between 1 and 3 ppm (mg/L).
Combined chlorine is the quantity of chlorine that has combined with nitrogen containing compounds. It is much less effective as a disinfectant than free chlorine. Total chlorine is a measurement of both combined chlorine and free chlorine. Ideally there is a balance between free and total chlorine which means that the combined chlorine levels are near zero. The presence of chloramines is undesirable because of the distinctive “swimming pool smell” as well as irritation to the eyes and mucous membranes caused by combined chlorines like dichloramines.
HI7014 Pool Line Checker® Handheld Colorimeter is designed for the measurement of free chlorine in swimming pools, hot tubs, and spas. The contoured style of the Checker fits in your palm and pocket perfectly and the large LCD is easy to read. The auto shut-off feature assures the battery life will not be drained if you forget to turn it off.
The contoured style of this Checker fit in your palm and pocket perfectly and the large LCD is easy to read. The auto shut-off feature assures the battery life will not be drained if you forget to turn it off.
To perform a measurement the instrument a water sample is placed into a cuvette and the meter is zeroed. Next, a reagent is added that will react with free chlorine to produce a pink color. Last, place the vial into the Checker, press the button and read the results. It’s that easy.
HI7014 Checker HC is supplied with sample cuvettes with caps (2), free chlorine starter reagent kit for 6 tests, 1.5VAAA battery (1), and instructions.
| SKU | HI7014 |
| Name | Pool Line Free Chlorine Checker HC – HI7014 |
| Free Chlorine Range | 0.00 to 2.50 ppm (as Cl2) |
| Free Chlorine Resolution | 0.01 ppm |
| Free Chlorine Accuracy | ?0.03 ppm ? 3% of reading |
| Chlorine Method | Adaptation of US EPA Method 330.5. The reaction between free chlorine and the DPD reagent causes a pink tint in the sample. |
| Photometer/Colorimeter Light Source | LED @ 525 nm |
| Photometer/Colorimeter Light Detector | silicon photocell |
| Battery Type/Life | 1.5V AAA |
| Automatic Shut-Off | after 2 minutes of non-use |
| Environment | 0 to 50?C (32 to 122?F); RH max 95% non-condensing |
| Weight | 64 g (2.3 oz.) |
| Dimensions | 86.0 mm x 61.0 mm x 37.5mm (3.2 x 2.4 x 1.5”) |
Ammonia Low-Range Checker® HC - HI700
The HI700 Checker® HC (Handheld Colorimeter) is a simple, accurate and cost effective way to measure ammonia. Present in water as a component of the nitrogen cycle, ammonia is excreted from animals and other organisms such as heterotrophic bacteria, actinomycetes, and fungi during the metabolism of proteins and amino acids. Generally present in small quantities in unpolluted waters, higher levels indicate organic pollution, and is toxic to aquatic life. Designed as a more accurate alternative to chemical test kits, the HI700 provides quick, accurate results in four easy steps:
Features at-a-glance:
- Easier to use and more accurate than chemical test kits
- Dedicated to a single parameter
- Small size, big convenience
- Ideal for: Water quality, Environmental, Plating, Education
HI700 Checker® is supplied with (2) sample cuvettes with caps, ammonia reagent starter kit for 25 tests (1 bottle of HI700A-0 reagent A and 1 bottle of HI700B-0 reagent B), battery, instructions.
| SKU | HI700 |
| Name | Ammonia Low-Range Checker® HC – HI700 |
| Ammonia Range | 0.00 to 3.00 ppm NH?-N |
| Ammonia Resolution | 0.01 ppm |
| Ammonia Accuracy | ?0.05 ppm ?5% of reading |
| Ammonia Method | adaptation of the ASTM Manual of Water and Environmental Technology D1426-92, Nessler Method. The reaction between ammonia and reagents causes a yellow tint in the sample. |
| Photometer/Colorimeter Light Source | LED @ 470 nm |
| Photometer/Colorimeter Light Detector | silicon photocell |
| Battery Type/Life | (1) 1.5V AAA |
| Automatic Shut-Off | after ten minutes of non-use |
| Environment | 0 to 50?C (32 to 122?F); RH max 95% non-condensing |
| Weight | 64 g (2.25 oz.) |
| Dimensions | 81.5mm x 61mm x 37.5mm (3.2 in. x 2.4 in. x 1.5”) |
Reagents for 25 Total Hardness Low Range tests - HI735-25
The HI735-25 are high-quality reagents that are pre-measured, allowing for users to achieve fast and accurate measurements with their Total Hardness Low Range Checker – Checker HC. These reagents follow the DPD Method in which the reaction between chlorine and reagent causes a red-violet tint in the sample. By simply adding the packet of HI735-25 reagent to the sample, the reaction will take place and the HI735 will determine the concentration from the color that is produced. The results will be displayed in ppm (mg/L). These reagents are designed to be used with samples that have an expected range of 0 to 350 ppm (mg/L) as CaCO3.
| SKU | HI735-25 |
| Name | Reagents for 25 Total Hardness Low Range tests – HI735-25 |
Total Hardness Low Range Certified Standard Kit - HI735-11
HI735-11 is a high-quality set of calibration standards that allows users to validate the Total Hardness Low Range Checker – Checker®HC HI735. The calibration check set is produced in our state-of-the-art manufacturing facility using reagent grade chemicals in a temperature controlled environment.
The HI735-11 is Supplied with Certificate of Analysis containing:
- Product code
- Lot number
- Expiration date
| SKU | HI735-11 |
| Name | Total Hardness Low Range Certified Standard Kit – HI735-11 |
Total Hardness LR Checker HC Handheld Colorimeter
The HI735 Checker HC provides a simple, accurate and cost- effective way to measure low range total hardness in drinking and process water, heating and cooling systems, and swimming pools and spas.
| SKU | HI735 |
| Name | Total Hardness LR Checker HC Handheld Colorimeter |
| Range | 0 to 350 ppm (mg/L) as CaCO3 |
| Resolution | 1 ppm (mg/L) |
| Accuracy | ?6 ppm ?6% of reading @ 25 ?C (77 ?F) |
| Light source | Light Emitting Diode @ 470 nm |
| Light detector | Silicon photocell |
| Method | Adaptation of the EPA recommended Method 130.1. The |
| reaction between calcium, magnesium, and the reagents | |
| causes a red-violet tint in the sample | |
| Environment | 0 to 50 ?C (32 to 122 ?F); max. 95% RH non-condensing |
| Battery type | 1.5V AAA Alkaline |
| Auto shut-off | After 10 minutes of non-use |
| Dimensions | 86.0 x 61.0 x 37.5 mm (3.4 x 2.4 x 1.5”) |
| Weight | 64 g (2.3 oz) |
Marine Line Ammonia Checker HC - HI784
Ammonia is a by-product of the Nitrogen cycle. Ammonia is normally removed by nitrifying bacteria, but ammonia levels can rise if there is an imbalance in the tank water chemistry. Excessive ammonia in a marine aquarium increases the risk of inhabitant illness or death.
| SKU | HI784 |
| Name | Marine Line Ammonia Checker HC – HI784 |
| Range | 0.00 to 2.50 ppm (mg/L) NH3 |
| Resolution | 0.01 ppm (mg/L) |
| Accuracy | ?0.05 ppm ?5% of reading @ 25 ?C (77??F) |
| Light source | Light Emitting Diode @ 610 nm |
| Light detector | Silicon photocell |
| Method | Adaptation of the Salicylate Method. The reaction between Ammonia and Ammonium and the reagent causes a blue-green tint in the sample. |
| Environment | 0 to 50 ?C (32 to 122 ?F); max. 95% RH non-condensing Prepared sample cuvette (sample plus reagents) must be 18 to 29 ?C (65 to 85 ?F). |
| Battery type | 1.5V AAA Alkaline |
| Auto shut-off | After 10 minutes of non-use |
| Dimensions | 86.0 x 61.0 x 37.5 mm (3.4 x 2.4 x 1.5”): |
| Weight | 64 g (2.3 oz): |
Marine Magnesium Checker HC Handheld Colorimeter - HI783
Magnesium is the third most abundant ion in seawater, surpassed only by sodium and chloride. Its abundance is critical in the formation of weak ion pairs with carbonate ions. This allows calcium and carbonate ions to be available for uptake by corals and invertebrates. Low levels of magnesium lead to low or unstable levels of calcium and alkalinity. Signs of lowmagnesium levels include precipitation of calcium as insoluble calcium carbonate and impaired inhabitant growth and health.
Primary Applications:
Marine, Saltwater Aquariums, Aquaculture
| SKU | HI783 |
| Name | Marine Magnesium Checker HC Handheld Colorimeter – HI783 |
| Range | 1000 to 1800 ppm Magnesium |
| Resolution | 5 ppm |
| Accuracy | ?5% of reading @ 25 ?C (77 ?F) |
| Light source | Light Emitting Diode @ 610 nm |
| Light detector | Silicon photocell |
| Method | Adaptation of the colorimetric EDTA method using calmagite indicator. The reaction between magnesium and the reagents causes a blue to violet tint in the sample. |
| Environment | 0 to 50 ?C (32 to 122 ?F); max. 95% RH non-condensing Prepared sample cuvette (sample plus reagents) must be 18 to 28 ?C (64 to 82 ?F). |
| Battery type | 1.5V AAA Alkaline |
| Auto shut-off | After 10 minutes of non-use |
| Dimensions | 86.0 x 61.0 x 37.5 mm (3.4 x 2.4 x 1.5”) |
| Weight | 64 g (2.3 oz) |
| Interferences | Calcium below 300 ppm and above 500 ppm |
Checker® pH Tester with 0.1 pH Resolution - HI98103
The HI98103 Checker pH tester has been designed with many advanced features while maintaining the look and feel of the original Checker. The redesigned Checker now offers automatic calibration to one or two points, automatic buffer recognition, calibrated buffer tags, stability indicator, low battery indicator, and selectable automatic shut off. The Checker plus still maintains the iconic pentagon design with a probe that measures 103 mm in length and tapered to a 8 mm diameter making it ideal for test tubes and vials.
Economical – The Checker is a full-featured pH tester at a price that anyone that needs to measure pH can afford.
Large LCD – Enhanced LCD that displays reading, stability indicator, low battery indicator and calibration tags.
Replaceable pH Electrode – The HI1271 * supplied gel filled pH electrode tapers to an 8 mm diameter at the sensing end. This narrow electrode easily fits into test tubes, vials, and other containers with small opening.
Automatic Calibration – The Checker is calibrated automatically to one or two points. The calibration buffers are automatically recognized and after calibration the buffer values used are shown on the display as a tag.
Stability Indicator – An hourglass indicator is displayed on the LCD until a stable reading is obtained. Once a reading stabilized the indicator disappears and a reading can be recorded.
Automatic Shut-Off – The meter can be set to automatically turn off after 8 minutes or 60 minutes to conserve battery life in the event that the meter is left on. The auto off feature can be disabled.
Long Battery Life – The Checker Plus has an exceptional long battery life of approximately 1000 hours. When the battery power is running low a low battery indicator is displayed.
* (Instert photo comparison)
HI98103 Checker is supplied with HI1271 pH electrode, HI70004 pH 4.01 buffer solution sachets (2 x 20 mL), HI70007 pH 7.01 buffer solution sachets (2 x 20 mL), HI700601 electrode cleaning solution sachets (2 x 20 mL), instruction manual, instrument quality certificate and plastic carrying case.
| SKU | HI98103 |
| Name | Checker® pH Tester with 0.1 pH Resolution – HI98103 |
| pH Range | 0.0 to 14.0 pH |
| pH Resolution | 0.1 pH |
| pH Accuracy | ?0.2 pH |
| pH Calibration | Automatic, two points |
| pH Electrode | HI1271 pH electrode with screw type connector (included) |
| Automatic Shut-Off | 8 minutes, 60 minutes, or can be disabled |
| Battery Type/Life | 1.5V CR2032 (1) / approximately 1000 hours of continuous use |
| Environment | 0 to 50?C (32 to 122?F); RH max 95% |
| Dimensions | 50 x 174 x 21 mm (2 x 6.8 x 0.9”) |
| Weight | 50 g (1.8 oz.) |
Checker® Plus pH Tester with 0.01 pH Resolution- HI98100
The HI98100 Checker Plus pH tester has been designed with many advanced features while maintaining the look and feel of the original Checker. The Checker Plus now offers automatic calibration to one or two points, automatic buffer recognition, calibrated buffer tags, stability indicator, low battery indicator, and selectable automatic shut off. The Checker plus still maintains the iconic pentagon design with a probe that measures 103 mm in length and tapered to a 8 mm diameter making it ideal for test tubes and vials.
Economical – The Checker Plus is a full-featured pH tester at a price that anyone that needs to measure pH can afford.
Large LCD – Enhanced LCD that displays reading, stability indicator, low battery indicator and calibration tags.
Replaceable pH Electrode – The HI1271 supplied gel filled pH electrode tapers to an 8 mm diameter at the sensing end. This narrow electrode easily fits into test tubes, vials, and other containers with small opening.
Automatic Calibration – The Checker Plus is calibrated automatically to one or two points. The calibration buffers are automatically recognized and after calibration the buffer values used are shown on the display as a tag.
Stability Indicator – An hourglass indicator is displayed on the LCD until a stable reading is obtained. Once a reading stabilized the indicator disappears and a reading can be recorded.
Automatic Shut-Off – The meter can be set to automatically turn off after 8 minutes or 60 minutes to conserve battery life in the event that the meter is left on. The auto off feature can be disabled.
Long Battery Life – The Checker Plus has an exceptional long battery life of approximately 1000 hours. When the battery power is running low a low battery indicator is displayed.
HI98100 is supplied with HI1271 pH electrode, HI70004 pH 4.01 buffer solution sachets (2 x 20 mL), HI70007 pH 7.01 buffer solution sachets (2 x 20 mL), HI700601 electrode cleaning solution sachets (2 x 20 mL), instruction manual, instrument quality certificate and plastic carrying case.
| SKU | HI98100 |
| Name | Checker® Plus pH Tester with 0.01 pH Resolution- HI98100 |
| pH Range | 0.00 to 14.00 pH |
| pH Resolution | 0.01 pH |
| pH Accuracy | ?0.2 pH |
| pH Calibration | automatic, one or two points with three standard buffers available (pH 4.01, 7.01 and 10.01) |
| pH Electrode | HI1271 pH electrode with screw type connector (included) |
| Automatic Shut-Off | 8 minutes, 60 minutes, or can be disabled |
| Battery Type/Life | 1.5V CR2032 (1) / approximately 1000 hours of continuous use |
| Environment | 0 to 50?C (32 to 122?F); RH max 95% |
| Dimensions | 50 x 174 x 21 mm (2 x 6.8 x 0.9”) |
| Weight | 50 g (1.8 oz.) |
