- ORP
- ISE
- Salinity
- Dissolved oxygen
- Multiparameter
- Application Specific
Offers a wide selection of pH and ORP testers. Choose from the latest pHep to the iconic Checker® that has been used in schools all over the world. Available options include testers with replaceable electrodes, multi-level LCD, or the Piccolo® that has an amplified probe, making it immune to electrical noise interference. Versions with multi-level LCDs not only display temperature along with pH or ORP, but also have indicators for instability, calibration, and battery level.
The pHep®5 is a waterproof pH tester with a 0.01 pH resolution and an accuracy of ±0.5 pH. The one, two, or three-point calibration is automatic to two selectable buffer sets (4.01, 7.01 and 10.01 or 4.01, 6.86, and 9.18). The pHep®5 also features a replaceable electrode with a stainless steel round connector. The HI73127 replacement pH electrode also features an extractable cloth that is used to renew the junction by extracting ⅛” of the cloth junction to expose a new portion. Any clogging that was present is cleared and the response time will be back to normal, extending the life of the pH electrode.
Features
- Waterproof casing designed to float if dropped in water
- Expanded pH Range from -2.0 to 16.0 pH
- Automatic Temperature Compensation, displays temperature in °C or °F
- Stability indicator confirms the reading has stabilized
- HOLD button for easier measurement recording
- Battery Error Prevention System (BEPS)
- Auto-off to preserve battery life
SKU | HI98128 |
Product Name | Waterproof pHep®5 pH/Temperature Tester – HI98128 |
Quote Required | Yes |
pH Range | -2.00 to 16.00 pH |
pH Resolution | 0.01 pH |
pH Accuracy | ±0.05 pH |
pH Calibration | automatic, at one, two, or three points with two sets of standard buffers (pH 4.01 / 7.01 / 10.01 or pH 4.01 / 6.86 / 9.18) |
pH Temperature Compensation | automatic |
Temperature Range | -5.0 to 60.0°C / 23.0 to 140.0°F |
Temperature Resolution | 0.1°C / 0.1°F |
Temperature Accuracy | ±0.5°C /±1°F |
pH Electrode | HI73127 replaceable pH electrode (included) |
Automatic Shut-Off | after 8 minutes of non-use |
Battery Type/Life | 1.5V (4) / approx. 300 hours of continuous use |
Environment | -5 to 50°C (23 to 122°F); RH max 100% |
Dimensions | 163 x 40 x 26 mm (6.4 x 1.6 x 1.0’’) |
Weight | 100 g (3.5 oz.) |
Ordering Information | HI98128 (pHep®5) is supplied with HI73127 pH electrode, HI73128 electrode removal tool, batteries and instructions. |
The pHep®4 is a waterproof pH tester with a 0.1 pH resolution and an accuracy of ±0.1 pH. It has many advanced features that are found in more expensive portable instrumentation. One or two-point calibration is automatic to two selectable buffer sets (4.01, 7.01 and 10.01 or 4.01, 6.86, and 9.18). The pHep®4 also features a replaceable electrode with a stainless steel round connector. This cartridge design has no pins to line up or that can break. The HI73127 replacement pH electrode also features an extractable cloth junction. The extractable cloth junction of the HI73127 allows for the renewing of the junction. Simply extract ⅛” of the junction by pulling on the junction will expose a new portion. Any clogging that was present will be cleared and the response time will be back to normal extending the life of the pH electrode.
Features at-a-glance
Waterproof
- Designed to float if accidentally dropped in a tank
Expanded pH Range
- pH range is from -2.0 to 16.0 pH
Automatic Temperature Compensation
- All readings are compensated for variations in temperature
- Temperature displayed in °C or °F along with pH reading
Stability indicator
- Meter displays a clock tag that will disappear when the reading has achieved stability
HOLD button
- Freezes reading on the display to allow recording of measurement
BEPS (Battery Error Prevention System)
- Meter will automatically shut off if there is not enough power to get an accurate measurement
Auto-off
- Meter automatically shuts off after 8 minutes of non-use to maximize battery life
SKU | HI98127 |
Product Name | pHep®4 pH/Temperature Tester – HI98127 |
Quote Required | Yes |
pH Range | -2.0 to 16.0 pH |
pH Resolution | 0.1 pH |
pH Accuracy | ±0.1 pH |
pH Calibration | automatic, at one or two points with two sets of standard buffers (pH 4.01 / 7.01 / 10.01 or pH 4.01 / 6.86 / 9.18) |
pH Temperature Compensation | automatic |
Temperature Range | -5.0 to 60.0°C / 23.0 to 140.0°F |
Temperature Resolution | 0.1°C / 0.1°F |
Temperature Accuracy | ±0.5°C /±1°F |
pH Electrode | HI73127 replaceable pH electrode (included) |
Temperature Probe | integrated thermistor |
Automatic Shut-Off | after 8 minutes of non-use |
Battery Type/Life | 1.5V (4) / approx. 300 hours of continuous use |
Environment | -5 to 50°C (23 to 122°F); RH max 100% |
Dimensions | 163 x 40 x 26 mm (6.4 x 1.6 x 1.0’’) |
Weight | 100 g (3.5 oz.) |
Ordering Information | HI98127 (pHep®4) is supplied with HI73127 pH electrode, HI73128 electrode removal tool, batteries and instructions. |
HI98107 pHep® pH tester displays readings with 0.1 pH resolution, ±0.1 pH accuracy, and a range from 0.0 to 14.0 pH. This rugged, reliable, ergonomic, pocket-sized tester is designed for use in the lab or fields while keeping things simple with a two-button operation.
- Extractable Cloth Junction to Extend pH Electrode Life
- Has Automatic Temperature Compensation
- For Use in Fresh Water
Overview
Multi-Level LCD
The large LCD displays pH, temperature, calibration buffer tags, battery level, and instability indicator.
Sensors
An exposed temperature sensor along with an extractable cloth junction ensures a fast and stable temperature compensated measurement.
Two-Button Operation
Only two buttons for meter operation. One for on/off and one for calibration.
Features
Slim, ergonomic design that fits comfortably in the hand or pocket
Automatic temperature compensation, displays temperature in °C or °F
Automatic calibration with standard buffers (pH 4.01, 7.01, and 10.01)
Stability indicator confirms the reading has stabilized
Automatic shut-off with three user controlled settings to conserve battery life
Battery Error Prevention System (BEPS)
SKU | HI98107 |
Product Name | pHep Waterproof Pocket pH Tester with 0.1 pH Resolution – HI98107 |
Quote Required | Yes |
pH Range | 0.0 to 14.0 pH |
pH Resolution | 0.1 pH |
pH Accuracy | ±0.1 pH |
pH Calibration | Automatic, one or two points |
pH Temperature Compensation | Automatic, 0 to 50 oC (32 to 122°F) |
Temperature Range | 0 to 50 oC (32.0 to 122.0oF) |
Temperature Resolution | 0.1 oC / 0.1 °F |
Temperature Accuracy | ±0.5 oC / ±1.0 °F |
Automatic Shut-Off | 8 minutes, 60 minutes, or disabled |
Battery Type/Life | CR2032 3V Li-Ion (1 pc.) / approximately 800 hours of use |
Environment | 0 to 50°C (32 to 122°F); RH max 100% |
Dimensions | 160 x 40 x 17 mm (6.3 x 1.6 x 0.7“) |
Weight | 65 g (2.3 oz.) without battery |
Ordering Information | The HI98107 is supplied with protective cap, pH 4.01 buffer sachet, pH 7.01 buffer sachet (2), electrode cleaning sachet, CR2032 battery, instrument quality certificate and instructional manual. |
HI98108 pHep+ is a compact, waterproof pH tester with a range from 0.00 to 14.00 pH, resolution of 0.01 pH, and ±0.10 pH accuracy.
- Compact, waterproof design
- Calibration up to 3 points
- For environmental, field, and laboratory testing
Overview
Multi-Level LCD
The large LCD displays pH, temperature, calibration buffer tags, battery level, and instability indicator.
Sensors
An exposed temperature sensor along with an extractable cloth junction ensures a fast and stable temperature compensated measurement.
Two-Button Operation
Only two buttons for meter operation. One for on/off and one for calibration.
Features
Slim, ergonomic design that fits comfortably in the hand or pocket
Automatic Temperature Compensation (ATC), displays temperature in °C or °F
Automatic calibration when using standard buffers (pH 4.01, 7.01 and 10.01)
Simultaneously displays pH and temperature measurements
Automatic shut-off with three user controlled settings
Battery % level at startup
| SKU | HI98108 |
|---|---|
| Product Name | pHep+ Waterproof Pocket pH Tester with 0.01 pH Resolution – HI98108 |
| Quote Required | Yes |
| pH Range | 0.00 to 14.00 pH |
| pH Resolution | 0.01 pH |
| pH Accuracy | ±0.10 pH |
| pH Calibration | automatic, up to three points |
| pH Temperature Compensation | automatic from 0 to 50°C (32 to 122°F) |
| Temperature Range | 0.0 to 50.0 oC (32.0 to 122.0 oF) |
| Temperature Resolution | 0.1 oC / 0.1 oF |
| Temperature Accuracy | ±0.5 oC / ±1.0 oF |
| Automatic Shut-Off | 8 minutes, 60 minutes, or disabled |
| Battery Type/Life | CR2032 3V Li-Ion (1 pc.) / approximately 800 hours of use |
| Environment | 0 to 50°C (32 to 122°F); RH max 100% |
| Dimensions | 160 x 40 x 17 mm (6.3 x 1.6 x 0.7“) |
| Weight | 65 g (2.3 oz.) without battery |
| Ordering Information | The HI98108 pHep+ is supplied with protective cap, pH 4.01 buffer sachet, pH 7.01 buffer sachet (2), electrode cleaning sachet, CR2032 battery, instrument quality certificate and instructional manual. |
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.
Features at-a-glance:
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.
SKU | HI98100 |
Product Name | Checker® Plus pH Tester with 0.01 pH Resolution- HI98100 |
Quote Required | Yes |
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.) |
Ordering Information | 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. |
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.
Features at-a-glance:
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.
SKU | HI98103 |
Product Name | Checker® pH Tester with 0.1 pH Resolution – HI98103 |
Quote Required | Yes |
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.) |
Ordering Information | 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. |
Similar to a pH measurement that quantifies the how acidic or alkaline solutions are, ORP (Oxidation Reduction Potential) measurements quantify the overall state of a solution as having the ability to oxidize or reduce a chemical species. Oxidizing and reducing reagents are used to participate in chemical reactions known as a redox reaction.
An important part of the ORP probe is to have a sensor that is chemically inert; meaning it cannot be oxidized or reduced itself. It must also have the proper surface characteristics to promote rapid electron exchange, a property known as high exchange current density. Two noble metals have proven to work well for this purpose: pure platinum and pure gold. Both are commonly used in the construction of ORP probes.
The platinum sensor is often preferred because it is mechanically simpler to produce. Platinum can be welded to glass and also has a similiar thermal expansion coefficient. Sensors made of gold cannot be welded to the glass and are often placed in plastic supports applied to the glass or plastic tube by means of tiny elastomeric bungs.
Many industries rely upon ORP measurements including swimming pools, food processing, boilers and cooling towers, and plating. The measurement of ORP helps the user monitor the effectiveness of disinfecting compounds including chlorine and ozone. ORP is also used to monitor redox reactions including the use of bisulfite in the reduction of hexavalent chromium to trivalent chromium in plating wastewater.
Features at-a-glance:
Waterproof
- IP67 rated
- Protects the internal electronics of the meter from an ingress of water in the event that the meter is dropped into a tank or a body of water.
Stability indicator
- HI98120 features a stability indicator tag on the LCD that will disappear once the reading stabilizes.
Replaceable electrode
- An electrode last approximately one to two years. It is possible to replace just the electrode and not have to buy a completely new meter.
- The HI73120 ORP electrode is a simple cartridge design allows the sensor to be easily replaced whether in the lab or in the field.
HOLD feature
- Allows the reading to be frozen so that the reading can be documented.
Auto-shut off
- The meter automatically turns itself off after 8 minutes of use in order to conserve battery life in the event the meter is accidently left on.
Battery % level
- When the meter is turned on the battery % level is displayed as a percentage.
SKU | HI98120 |
Product Name | ORP/Temperature Tester – HI98120 |
Quote Required | Yes |
ORP Range | ±1000 mV |
ORP Resolution | 1 mV |
ORP Accuracy | ±2 mV |
Temperature Range | -5.0 to 60.0°C / 23.0 to 140.0°F |
Temperature Resolution | 0.1°C / 0.1°F |
Temperature Accuracy | ±0.5°C /±1°F |
ORP Electrode | HI73120 replaceable ORP electrode (included) |
Automatic Shut-Off | after 8 minutes of non-use |
Battery Type/Life | 1.5V (4) / approx. 300 hours of continuous use |
Environment | -5 to 50°C (23 to 122°F); RH max 100% |
Dimensions | 163 x 40 x 26 mm (6.4 x 1.6 x 1.0’’) |
Weight | 100 g (3.5 oz.) |
Ordering Information | HI98120 (ORP) is supplied with HI73120 ORP electrode, HI73128 electrode removal tool, batteries and instructions. |
The HI98121 is a lightweight ergonomically designed tester. This tester is designed to float making it ideal for taking readings virtually anywhere. With the HI98121 it is possible to monitor both pH and ORP at the same time. The HI98121 is commonly used to monitor pH and chlorine for many applications including swimming, food sanitization, plating wastewater treatment, and cooling tower water treatment.
By definition pH is the measurement of the voltage generated by an electrochemical cell at zero current. The potential generated is proportional to the thermodynamic activity of the ion being measured.
Similar to a pH measurement that quantifies the how acidic or alkaline solutions are, ORP (Oxidation Reduction Potential) measurements quantify the overall state of a solution as having the ability to oxidize or reduce a chemical species. Oxidizing and reducing reagents are used to participate in chemical reactions known as a redox reaction.
An ORP sensor must be chemically inert; it cannot be oxidized or reduced itself. It must also have the proper surface characteristics to promote rapid electron exchange, a property known as high exchange current density. Two noble metals have proven to work well for this purpose: pure platinum and pure gold are both used in the construction of ORP sensors.
Features at-a-glance:
- Waterproof
- Automatic Temperature Compensation
- HOLD feature
- Simple to use
- Economical
SKU | HI98121 |
Product Name | pH/ORP/Temperature Combo Tester – HI98121 |
Quote Required | Yes |
pH Range | -2.00 to 16.00 pH |
pH Resolution | 0.01 pH |
pH Accuracy | ±0.05 pH |
pH Calibration | automatic, at one or two points with two sets of standard buffers (pH 4.01 / 7.01 / 10.01 or pH 4.01 / 6.86 / 9.18) |
pH Temperature Compensation | automatic for pH readings |
ORP Range | ±1000 mV |
ORP Resolution | 1 mV |
ORP Accuracy | ±2 mV |
Temperature Range | -5.0 to 60.0°C / 23.0 to 140.0°F |
Temperature Resolution | 0.1°C / 0.1°F |
Temperature Accuracy | ±0.5°C /±1°F |
pH Electrode | HI73127 replaceable pH electrode (included) |
ORP Electrode | fixed ORP sensor |
Automatic Shut-Off | after 8 minutes non-use |
Battery Type/Life | 1.5V (4) / approximately 250 hours of continuous use |
Environment | -5 to 50°C (23 to 122°F); RH max 100% |
Dimensions | 163 x 40 x 26 mm (6.4 x 1.6 x 1.0’’) |
Weight | 100 g (3.5 oz.) |
Ordering Information | HI98121 (ORP/pH) is supplied with HI73127 pH electrode, HI73128 electrode removal tool, batteries and instructions. |
