- ORP Testers
- TDS Testers
- Multiparameter Testers
- Temperature Testers
- Application Specific
Conductivity and TDS Testers come in a variety of styles. We have versions with graphite sensors which reduce polarization effects that occur with amperometric measuring methods. A key feature is temperature compensation, since EC/TDS measurements are very sensitive to temperature changes. Hanna Instruments uses an exposed temperature probe for near instantaneous measurement, resulting in a faster response time. Other features include a multi-level LCD to display EC or TDS along with temperature, adjustable EC to TDS conversion factors, and adjustable temperature compensation coefficient.
The original DiST® (Dissolved Solids Tester) was first introduced, conductivity and total dissolved solids measurements became easy and affordable. The DiST’s ease of use, in combination with its affordability, made it the standard in EC and TDS measurement. Hanna continues the standard in EC and TDS testing with the DiST®5.
This tester includes features such as a replaceable graphite electrode, adjustable TDS ratio, °C or °F measurement, Automatic Temperature Compensation (ATC) with adjustable β, battery level indicator, stability indicator, automatic shut-off and automatic calibration.
The graphite conductivity electrode offers greater accuracy by resisting contamination by salt deposits in the sample. All of these features are packed in a floating, waterproof casing. This 3-in-1 tester is unmatched in EC, TDS, and temperature measurements.
Features at-a-glance
- Waterproof and designed to float
- Automatic Temperature Compensation
- HOLD button to freeze readings on the display
- BEPS Alerts the user of low battery power that could adversely affect readings
SKU | HI98311 |
Product Name | DiST® 5 EC/TDS/Temperature Tester (0-3999 µS/cm) – HI98311 |
Quote Required | Yes |
EC Range | 0 to 3999 µS/cm |
EC Resolution | 1 µS/cm |
EC Accuracy | ±2% F.S. |
EC Calibration | automatic, one-point at |
TDS Range | 0 to 2000 ppm (mg/L) |
TDS Resolution | 1 ppm (mg/L) |
TDS Accuracy | ±2% F.S. |
TDS Calibration | automatic, one-point at |
EC/TDS Temperature Compensation | automatic |
Temperature Correction Coefficient | β adjustable from 0.0 to 2.4% / °C |
EC to TDS Conversion Factor | 0.45 to 1.00 |
Temperature Range | 0.0 to 60.0°C / 32.0 to 140.0°F |
Temperature Resolution | 0.1°C / 0.1°F |
Temperature Accuracy | ±0.5°C /±1°F |
EC/TDS Probe | HI73311 replaceable EC/TDS graphite electrode (included) |
Automatic Shut-Off | auto-off after 8 minutes of non-use |
Battery Type/Life | 1.5V (4) / approx. 100 hours of continuous use |
Environment | 0 to 50°C (32 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 | HI98311 (DiST®5) is supplied with HI73311 EC/TDS probe, HI73128 probe removal tool, batteries and instructions. |
The original DiST® (Dissolved Solids Tester) was first introduced, conductivity and total dissolved solids measurements became easy and affordable. The DiST’s ease of use, in combination with it’s affordability, made it the standard in EC and TDS measurement. Hanna continues the standard in EC and TDS testing with the DiST®6.
These testers include features such as: a replaceable graphite electrode, adjustable TDS ratio, °C or °F measurement, Automatic Temperature Compensation (ATC) with adjustable β, battery level indicator, stability indicator, automatic shut-off and automatic calibration.
The graphite conductivity electrode offers greater accuracy by resisting contamination by salt deposits in the sample. All of these features are packed in a floating, waterproof casing. These 3-in-1 testers are unmatched in EC/TDS/ temperature measurements.
Features at-a-glance
- Waterproof and designed to float
- Automatic Temperature Compensation
- HOLD button to freeze readings on the display
- BEPS Alerts the user of low battery power that could adversely affect readings
SKU | HI98312 |
Product Name | DiST® 6 EC/TDS/Temperature Tester (0.00 to 20.00 mS/cm) – HI98312 |
Quote Required | Yes |
EC Range | 0.00 to 20.00 mS/cm |
EC Resolution | 0.01 mS/cm |
EC Accuracy | ±2% F.S. |
EC Calibration | automatic, one-point at |
TDS Range | 0.00 to 10.00 ppt (g/L) |
TDS Resolution | 0.01 ppt (g/L) |
TDS Accuracy | ±2% F.S. |
TDS Calibration | automatic, one-point at |
EC/TDS Temperature Compensation | automatic, with β adjustable from 0.0 to 2.4% / °C |
EC to TDS Conversion Factor | 0.45 to 1.00 |
EC/TDS Probe | HI73311 replaceable EC/TDS graphite electrode (included) |
Battery Type/Life | 1.5V (4) / approx. 100 hours of continuous use, auto-off after 8 minutes of non-use |
Environment | 0 to 50°C (32 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 | HI98312 (DiST®6) is supplied with HI73311 EC/TDS probe, HI73128 probe removal tool, batteries and instructions. |
The HI98308 features an amperometric graphite electrode that provides better repeatability in measurements since they do not oxidize. An amperometric measurement of EC is based on Ohm’s Law, I = V/R, where R depends on the distance between two pins and their surface. Oxidation changes both the distance and surface, which will affect accuracy. The non-oxidizing graphite pins are able to provide an optimal surface for accurate, dependable results. When calibration is needed, simply submerge the electrode tip into calibration solution and adjust the trimmer on the side of the tester.
The HI98308 uses a conductometric measurement to determine the purity of water. The HI98308 Pure Water Test (PWT) enables users to check the purity of distilled or demineralized water in laboratory or industrial environments. PWT is suited for fields such as printed circuit board washing, laundry, steam cleaning, checking car battery water and all areas where distilled, demineralized or pure water is used. This tester is housed in durable casing that provides excellent protection against harsh industrial environments.
Electrolytic conductivity, abbreviated as EC, is a measurement made in which electrical charges on atomic or larger sized particles in a medium are moved under the influence of a potential difference. EC is a measure of concentration, however, it is non-specic for ion type. An ion is a charged particle present in the solution that contributes to the current flow. Ions are formed when a salt such as sodium chloride is dissolved in water to form particles having electrical charges. Sodium chloride, separates into Na+ and Cl-. This is a simplified definition as the measurement is affected by many things such as the type of ionic compound(s) dissolved in the water; the ions mobility, the solution viscosity, temperature as well as concentration.
Electrical conductance, the ability of a substance to conduct an electrical current is the reciprocal of electrical resistance. “Conductance” and “Resistance” depend on the geometrical dimensions of the substance being measured. Conductivity and resistivity are “normalized” terms that are used to denote a bulk intrinsic property of a substance. This is the measurement a standardized EC probe on a Conductivity or resistivity meter provides. Conductivity measurements can be used to provide additional industry specific measurements; TDS, Salinity and USP compliant conductivity. Many of Hanna’s meters provide these measurements also.
One-point calibration
Calibrate with 84 µS/cm EC solution using a screwdriver
Exposed Temperature Probe
Fast response to changes in sample temperature
Automatic Temperature Compensation (ATC)
Samples automatically compensated for temperature variations
Graphite electrode
- Reduced polarization effects
SKU | HI98308 |
Product Name | Pure Water Tester (0.0 – 99.9 µS/cm) – HI98308 |
Quote Required | Yes |
EC Range | 0.0 to 99.9 µS/cm |
EC Resolution | 0.1 µS/cm |
EC Accuracy | ±2% F.S. |
EC Calibration | manual, one point |
EC/TDS Temperature Compensation | automatic from 0 to 50°C (32 to 122°F) with β=2%/°C typical |
Battery Type/Life | 1.5V (4) / approximately 250 hours of continuous use |
Environment | 0 to 50°C (32 to 122°F); RH max 95% non-condensing |
Dimensions | 175 x 41 x 23 mm (6.9 x 1.6 x 0.9’’) |
Weight | 95 g (3.4 oz.) |
Ordering Information | HI98308 is supplied with protective cap, calibration screwdriver (HI98308), batteries and instructions. |
The HI98309 uses a conductometric measurement to determine the purity of water. The HI98309 Ultra Pure Water tester (UPW) enables users to check the purity of water, best suited for electronics and semiconductor industries. This tester is housed in durable casing that provides excellent protection against harsh industrial environments.
The HI98309 features an amperometric graphite electrode that provides better repeatability in measurements, since they do not oxidize. An amperometric measurement of EC is based on Ohm’s Law, I = V/R, where R depends on the distance between two pins and their surface. Oxidation changes both the distance and surface, which will affect accuracy. The non-oxidizing graphite pins are able to provide an optimal surface for accurate, dependable results. When calibration is needed, simply submerge the electrode tip into calibration solution and adjust the trimmer on the side of the tester.
Electrolytic conductivity, abbreviated as EC, is a measurement made in which electrical charges on atomic or larger sized particles in a medium are moved under the influence of a potential difference. EC is a measure of concentration however it is non-specic for ion type. An ion is a charged particle present in the solution that contributes to the current flow. Ions are formed when a salt such as sodium chloride is dissolved in water to form particles having electrical charges. Sodium chloride, separates into Na+ and Cl-. This is a simplified denfinition for the measurement is affected by many things such as the type of ionic compound(s) dissolved in the water; the ions mobility, the solution viscosity, temperature as well as concentration.
Electrical conductance, the ability of a substance to conduct an electrical current is the reciprocal of electrical resistance. “Conductance” and “Resistance” depend on the geometrical dimensions of the substance being measured. Conductivity and resistivity are “normalized” terms that are used to denote a bulk intrinsic property of a substance. This is the measurement a standardized EC probe on a Conductivity or resistivity meter provides. Conductivity measurements can be used to provide additional industry specific measurements; TDS, Salinity and USP compliant conductivity. Many of Hanna’s meters provide these measurements also.
Arrives pre-calibrated
- Factory-calibrated with freshly prepared low-conductivity solutions
Exposed Temperature Probe
- Fast response to changes in sample temperature
Graphite electrode
- Reduced polarization effects
SKU | HI98309 |
Product Name | Ultra Pure Water (UPW) Tester (0.000-1.999 µS/cm) – HI98309 |
Quote Required | Yes |
EC Range | 0.000 to 1.999 µS/cm |
EC Resolution | 0.001 µS/cm |
EC Accuracy | ±2% F.S. |
EC Calibration | Factory calibrated |
Battery Type/Life | 1.5V (4) / approximately 200 hours of continuous use |
Environment | 0 to 50°C (32 to 122°F); RH max 95% non-condensing |
Dimensions | 175 x 41 x 23 mm (6.9 x 1.6 x 0.9’’) |
Weight | 95 g (3.4 oz.) |
Ordering Information | HI98309 is supplied with protective cap, batteries and instructions. |
The DiST 1 features a large multi-level LCD which displays both TDS and temperature readings simultaneously. The TDS readings are displayed with a 1 ppm resolution and with an accuracy of ±2% full scale. The TDS range of the HI98301 is from 0 to 2000 ppm. An exposed temperature sensor allows for rapid automatic temperature compensated TDS measurements. Temperature can be set to display in ℃ or ℉. The LCD screen has stability and calibration tag indicators. The battery percent level is displayed at start up alerting the user to the remaining battery power that is available.
TDS readings are performed by an amperometric graphite electrode that resists oxidation, providing better repeatability in measurements. The use of graphite also reduces the polarization effect common with amperometric testers that use two stainless steel pins.
Calibration is performed by pressing the dedicated calibration button. Once in calibration mode submerge the probe in 1382 ppm calibration standard. When the standard value is recognized and stability reached, the meter will automatically accept and store the calibration value.
Setup options include automatic shut-off timing and temperature unit displayed. Automatic shut-off options are to turn the meter off after 8 minutes, 60 minutes, or disabled. To enter the setup mode the user presses a button located in the battery compartment.
Overview
Multi-Level LCD
The large LCD displays TDS, temperature, calibration tag, battery level and instability indicator.
Exposed Temperature Probe
An exposed temperature probe allows for an extremely fast and stable TDS measurement.
Two-Button Operation
Only two buttons for meter operation. One for on/off and one for calibration.
Arrives pre-calibrated
- Factory-calibrated with freshly prepared low-conductivity solutions
Exposed Temperature Probe
- Fast response to changes in sample temperature
Graphite electrode
- Reduced polarization effects
SKU | HI98301 |
Product Name | DiST 1 Waterproof TDS Tester (0-2000 ppm) – HI98301 |
Quote Required | Yes |
TDS Range | 0 to 2000 ppm (mg/L) |
TDS Resolution | 1 ppm (mg/L) |
TDS Accuracy | ±2% F.S. |
TDS Calibration | automatic, one point at 1382 ppm |
EC/TDS Temperature Compensation | automatic from 0 to 50°C (32 to 122°F) |
Temperature Correction Coefficient | 1.9%/°C |
EC to TDS Conversion Factor | 0.5 |
Temperature Range | 0.0 to 50.0°C (32.0 to 122.0°F) |
Temperature Resolution | 0.1°C (0.1°F) |
Temperature Accuracy | ±0.5°C (±1°F) |
Automatic Shut-Off | 8 minutes, 60 minutes, or disabled |
Battery Type/Life | CR2032 3V Li-Ion (1 pc.) / approximately 250 hours of continuous use |
Environment | 0 to 50°C (32 to 122°F); RH 100% |
Dimensions | 160 x 40 x 17 mm (6.3 x 1.6 x 0.7“) |
Weight | 68 g (2.4 oz.) without battery |
Ordering Information | HI98301 is supplied with protective cap, 1382 ppm calibration solution sachet (4), CR2032 battery, instrument quality certificate and instructional manual. |
HI98302 DiST 2 is a high-range, total dissolved solids tester than can measure up to 10.00 ppt (g/L); a rugged and reliable pocket-sized tester for use in the lab or field.
- Large Multi-level LCD
- Exposed Temperature Probe for Fast Response
- Simple Two-Button Operation
Overview
Multi-Level LCD
The large LCD displays TDS, temperature, calibration tag, battery level and instability indicator.
Exposed Temperature Probe
An exposed temperature probe allows for an extremely fast and stable TDS 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
Waterproof casing designed to floatif dropped in water
Graphite sensor reduces polarization effects and does not oxidize
Automatic calibration at 6.44 ppt with a single push of a button.
Automatic shut-off with three user settings
Battery Error Prevention System (BEPS) and low-battery Indicator
SKU | HI98302 |
Product Name | DiST 2 Waterproof High-Range TDS Tester – HI98302 |
Quote Required | Yes |
TDS Range | 0.00 to 10.00 ppt (g/L) |
TDS Resolution | 0.01 ppt (g/L) |
TDS Accuracy | ±2% F.S. |
TDS Calibration | automatic, one point at 6.44 ppt |
EC/TDS Temperature Compensation | automatic from 0.0 to 50.0°C (32.0 to 122.0°F) |
Temperature Correction Coefficient | 1.9%/°C |
EC to TDS Conversion Factor | 0.5 |
Temperature Range | 0.0 to 50.0°C (32.0 to 122.0°F) |
Temperature Resolution | 0.1°C (0.1°F) |
Temperature Accuracy | ±0.5°C (1.0°F) |
Automatic Shut-Off | 8 minutes, 60 minutes, or disabled |
Battery Type/Life | CR2032 3V Li-Ion (1 pc.) / approximately 250 hours of continuous use |
Environment | 0 to 50°C (32 to 122°F); RH 100% |
Dimensions | 160 x 40 x 17 mm (6.3 x 1.6 x 0.7“) |
Weight | 68 g (2.4 oz.) without battery |
Ordering Information | HI98302 is supplied with protective cap, 6.44 ppt calibration solution sachet (4), CR2032 battery, instrument quality certificate and instructional manual. |
The Hanna Instruments HI98303 DiST 3 is a low-range electrolytic conductivity (EC) tester than can measure up to 2000 µS/cm; making it ideal to monitor a variety of water quality applications including drinking water, water conditioning, irrigation water, and environmental monitoring. The DiST 3 is a rugged and reliable pocket-sized tester for use in the lab or field.
- Measures up to 2000 µS/cm
- Exposed Temperature Probe for Fast Response
- Simple Two-Button Operation
Overview
Multi-Level LCD
The large LCD displays EC, temperature, calibration tag, battery level, and instability indicator.
Exposed Temperature Probe
An exposed temperature probe allows for an extremely fast and stable EC 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
- Stability indicator confirms the reading has stabilized
- Waterproof casing designed to float if dropped in water
- Graphite sensor reduces polarization effects and does not oxidize
- Automatic calibration at 1413 mS/cm with a single push of a button.
- Automatic shut-off with three user settings
- Battery Error Prevention System (BEPS) and low-battery Indicator
- Slim, ergonomic design that fits comfortably in the hand or pocket
- Automatic Temperature Compensation (ATC), displays temperature in °C or °F
- Stability indicator confirms the reading has stabilized
- Waterproof casing designed to float if dropped in water
- Graphite sensor reduces polarization effects and does not oxidize
- Automatic calibration at 1413 mS/cm with a single push of a button.
- Automatic shut-off with three user settings
- Battery Error Prevention System (BEPS) and low-battery Indicator
SKU | HI98303 |
Product Name | DiST 3 Waterproof Low-Range EC Tester – HI98303 |
Quote Required | Yes |
EC Range | 0 to 2000 µS/cm |
EC Resolution | 1 µS/cm |
EC Accuracy | ±2% F.S. |
EC Calibration | automatic, one point at 1413 µS/cm |
EC/TDS Temperature Compensation | automatic from 0.0 to 50.0°C (32.0 to 122.0°F) |
Temperature Correction Coefficient | 1.9%/°C |
Temperature Range | 0.0 to 50.0°C (32.0 to 122.0°F) |
Temperature Resolution | 0.1°C (0.1°F) |
Temperature Accuracy | ±0.5°C (±1°F) |
Automatic Shut-Off | 8 minutes, 60 minutes, or disabled |
Battery Type/Life | CR2032 3V Li-Ion (1 pc.) / approximately 250 hours of continuous use |
Environment | 0 to 50°C (32 to 122°F); RH 100% |
Dimensions | 160 x 40 x 17 mm (6.3 x 1.6 x 0.7“) |
Weight | 68 g (2.4 oz.) without battery |
Ordering Information | HI98303 is supplied with protective cap, 1413 µS/cm calibration solution sachet (4), CR2032 battery, instrument quality certificate and instructional manual. |
The DiST 4 features a large multi-level LCD which displays both conductivity and temperature readings simultaneously. The EC readings are displayed with a 0.01 mS/cm resolution and with an accuracy of ±2% full scale. The EC range of the HI98304 is from 0.00 to 20.00 mS/cm. An exposed temperature sensor allows for rapid automatic temperature compensated conductivity measurements. Temperature can be set to display in ℃ or ℉. The LCD screen has stability and calibration tag indicators. The battery percent level is displayed at start up alerting the user to the remaining battery power that is available.
Conductivity readings are performed by an amperometric graphite electrode that resists oxidation, providing better repeatability in measurements. The use of graphite also reduces the polarization effect common with amperometric testers that use two stainless steel pins.
Calibration is performed by pressing the dedicated calibration button. Once in calibration mode submerge the probe in 12.88 mS/cm calibration standard. When the standard value is recognized and stability reached, the meter will automatically accept and store the calibration value.
Setup options include automatic shut-off timing and temperature unit displayed. Automatic shut-off options are to turn the meter off after 8 minutes, 60 minutes, or disabled. To enter the setup mode the user presses a button located in the battery compartment.
Overview
Multi-Level LCD
The large LCD displays EC, temperature, calibration tag, battery level and instability indicator.
Exposed Temperature Probe
An exposed temperature probe allows for an extremely fast and stable EC measurement.
Two-Button Operation
Only two buttons for meter operation. One for on/off and one for calibration.
Slim, Ergonomic Design
- With rounded edges and a case that is only 17 mm (0.7”) thick, the HI98304 is thin and fits comfortably in the hand or pocket.
Large Multi-level LCD
- The LCD is 29 mm (1.125”) x 20 mm (0.81”) allowing the user to easily read both the pH and temperature simultaneously.
Two-button Operation
- One for ON/OFF, the other for calibration.
Exposed Temperature Sensor
- Exposed temperature sensor allows for quick Automatic Temperature Compensated measurements. Temperature can be displayed in either oC or oF.
Graphite Sensor
- Reduces polarization effects and does not oxidize resulting in a reliable and accurate reading.
Automatic Calibration
- Automatic calibration at 12.88 mS/cm with a single push of a button.
Stability Indicator
- A clock tag stability indicator will disappear to alert the user when the reading is stable.
Automatic Shut-off
- User-selectable time until meter shuts off to conserve battery life. Options are 8 min, 60 min or disabled.
Low Battery Indicator
- Low battery indicator that is displayed when less than 10% battery life is remaining.
Battery % Level at Startup
- At start-up, all the LCD segments are displayed for 1 second, then the percent indication of the remaining battery life is displayed.
SKU | HI98304 |
Product Name | DiST 4 Waterproof EC Tester (0.00-20.00 mS/cm) – HI98304 |
Quote Required | Yes |
EC Range | 0.00 to 20.00 mS/cm |
EC Resolution | 0.01 mS/cm |
EC Accuracy | ±2% F.S. |
EC Calibration | automatic, one point at 12.88 mS/cm |
EC/TDS Temperature Compensation | automatic from 0.0 to 50.0°C (32.0 to 122.0°F) |
Temperature Correction Coefficient | 1.9%/°C |
Temperature Range | 0.0 to 50.0°C (32.0 to 122.0°F) |
Temperature Resolution | 0.1°C (0.1°F) |
Temperature Accuracy | ±0.5°C (±1°F) |
Automatic Shut-Off | 8 minutes, 60 minutes, or disabled |
Battery Type/Life | CR2032 3V Li-Ion (1 pc.) / approximately 250 hours of continuous use |
Environment | 0 to 50°C (32 to 122°F); RH 100% |
Dimensions | 160 x 40 x 17 mm (6.3 x 1.6 x 0.7“) |
Weight | 68 g (2.4 oz.) without battery |
Ordering Information | HI98304 is supplied with protective cap, 12.88 mS/cm calibration solution sachet (4), CR2032 battery, instrument quality certificate and instructional manual. |
The HI98331 features a stainless steel penetration electrode that provides the ability to take direct measurements in soil. When calibration is needed, simply submerge the electrode tip into calibration solution and and enter calibration mode for automatic 1 point calibration.
Electrolytic conductivity, abbreviated as EC, is a measurement made in which electrical charges of particles in a medium are moved under the influence of a potential difference. EC is a measure of concentration, however, it is non-specic for ion type. An ion is a charged particle present in the solution that contributes to the current flow. Ions are formed when a salt such as sodium chloride is dissolved in water to form particles having electrical charges. Sodium chloride, separates into Na+ and Cl–
Electrical conductance, the ability of a substance to conduct an electrical current is the reciprocal of electrical resistance. “Conductance” and “Resistance” depend on the geometrical dimensions of the substance being measured. Conductivity and resistivity are “normalized” terms that are used to denote a bulk intrinsic property of a substance. This is the measurement a standardized EC probe on a Conductivity or resistivity meter provides. Conductivity measurements can be used to provide additional industry specific measurements; TDS, Salinity and USP compliant conductivity. Many of Hanna’s meters provide these measurements also.
Features at-a-glance:
One-point calibration
Automatic calibration to 1413 µS/cm conductivity standard
Automatic Temperature Compensation (ATC)
Samples automatically compensated for temperature variations
- Uses a fixed 2%/oC temperature correction coefficient
Stainless steel penetration electrode
Allows for direct measurement in soil
SKU | HI98331 |
Product Name | Soil Test™ Direct Soil EC Tester – HI98331 |
Quote Required | Yes |
EC Range | 0 to 4000 μS/cm; 0.00 to 4.00 mS/cm (dS/m) |
EC Resolution | 1 μS/cm; 0.01 mS/cm (dS/m) |
EC Accuracy | ±50 μS/cm (0 to 2000 μS/cm), ±300 μS/cm (2000 to 4000 μS/cm); ±0.05 mS/cm (0.00 to 2.00 mS/cm), ±0.30 mS/cm (2.00 to 4.00 mS/cm) |
EC Calibration | automatic, one-point at 1.41 mS/cm |
EC/TDS Temperature Compensation | automatic, temperature coefficient (β) fixed 2% / °C |
Temperature Range | 0.0 to 50.0°C |
Temperature Resolution | 0.1°C |
Temperature Accuracy | ±1°C |
EC/TDS Probe | 114 mm (4.5 “) Stainless steel penetration |
Battery Type/Life | CR2032 Li-ion approximately 100 hours of continuous use |
Environment | 0 to 50°C (32 to 122°F); RH max 95% non-condensing |
Dimensions | 50 x 196 x 21 mm (2.0 x 7.7 x 0.9“) |
Weight | 74 g (2.4 oz.) |
Ordering Information | HI98331 is supplied with a stainless steel penetration probe, batteries, and instrument quality certificate. |
The GroLine Waterproof EC/TDS Tester is made specifically for hydroponics, provides a simple, inexpensive solution to measure fertilizer concentration in a nutrient solution.
The HI98318 EC/TDS tester has a graphite sensor that reduces the polarization effect common with amperometric testers that use two stainless steel pins.
Automatic calibration is achieved easily. Simply submerge the sensor in calibration solution and the meter will automatically detect the calibration standard (5.00 mS/cm in Quick Cal mode or 1.41 mS/cm in standard calibration mode). Temperature is automatically compensated for with the integrated temperature sensor.
Features at-a-glance
- Waterproof
- Fast Automatic Temperature Compensation with exposed temperature probe
- Graphite sensors that reduce polarization effects
- 0.5 (500 ppm) and 0.7 (700 ppm) selectable EC to TDS conversion factors
- Single point automatic calibration using Quick Cal standard or 1.41 mS/cm in standard calibration mode
- 250 hour battery life
SKU | HI98318 |
Product Name | GroLine Waterproof EC/TDS Tester – HI98318 |
Quote Required | Yes |
EC Range | 0.00 to 6.00 mS/cm |
EC Resolution | 0.01 mS/cm |
EC Accuracy | ±2% F.S. |
EC Calibration | automatic,single point (1.41 mS/cm) |
TDS Range | 0 to 3000 ppm (0.5) CF |
TDS Resolution | 10 ppm |
TDS Accuracy | ±2% F.S. |
TDS Calibration | through EC calibration |
EC/TDS Temperature Compensation | automatic, 0.0 to 50.0 ºC (32.0 to 122.0 ºF) |
EC to TDS Conversion Factor | selectable 0.5 or 0.7 conversion factor |
Temperature Range | 0.0 to 50.0 °C (32.0 to 122.0 °F) |
Temperature Resolution | 0.1 °C (0.1 °F) |
Temperature Accuracy | ±0.5 °C (±1.0 °F) |
Automatic Shut-Off | selectable 8 min, 60 min or disabled |
Battery Type/Life | CR2032 Li-Ion 3V (1 pc.) / approximately 250 hours of continuous use |
Environment | 0 to 50 ºC (32 to 122 ºF); RH 100% max |
Weight | 68 g (2.4 oz.) |
Ordering Information | HI98318 is supplied with Quick Cal pH and EC one point calibration solution sachet (4 pcs.), CR2032 battery (1 pc.), instruction manual, quality certificate packaged in rugged plastic carrying case. |
Notes | *1000 µS/cm =500 ppm with 0.5 CF |
HI98319 is a digital salinity tester designed specifically for saltwater aquariums that displays results in parts per thousand (ppt), Practical Salinity Units (PSU), or specific gravity (S.G.). This waterproof tester uses an amperometric conductivity probe to determine the salt content in the water.
- Exposed Temperature Probe for Fast Response
- Measures salinity up to 70.00 ppt
- Waterproof and designed to float
Features
- Salinity measurements calculated from a conductivity measurement using known tables
- Choice of measurement units displayed in parts per thousand (ppt), Practical Salinity Units (PSU), or specific gravity (S.G.)
- Automatic Temperature Compensation (ATC), displays temperature in °C or °F
- Amperometric graphite sensor reduces polarization effects and does not oxidize
- Large LCD displays stability indicator, low-battery indicator, and calibration tags
- Dedicated calibration button with automatic recognition of the 35.00 ppt calibration solution in calibration mode
- Supplied complete with meter and calibration sachets in a durable plastic storage case.
SKU | HI98319 |
Product Name | Marine Salinity Waterproof Tester – HI98319 |
Quote Required | Yes |
Salinity Range | 0.0 to 70.0 ppt (g/L) |
Salinity Resolution (ppt) | 0.1 ppt (g/L) |
Salinity Accuracy (ppt) | ±1 ppt for 0.0 to 40.0 ppt; ±2 ppt for readings over 40.0 ppt |
Salinity Calibration (ppt) | all ranges calibrated with 35.00 ppt salinity standard |
Salinity (PSU) Range | 0.0 to 70.0 PSU |
Salinity (PSU) Resolution | 0.1 PSU |
Salinity (PSU) Accuracy | ±1 PSU for 0.0 to 40.0 PSU ; ±2 PSU for readings over 40.0 PSU |
Specific Gravity Range | 1.000 to 1.041 S.G. |
Specific Gravity Resolution | 0.001 S.G. |
Specific Gravity Accuracy | ±0.001 S.G. |
Temperature Compensation | automatic from 5.0 to 50.0°C (41.0 to 122.0°F) |
Salinity Method | ppt – International Oceanographic Tables, 1966 |
Temperature Range | 0.0 to 50.0°C; 32.0 to 122.0°F |
Temperature Resolution | 0.1°C; 0.1°F |
Temperature Accuracy | ±0.5°C; ±1°F |
Automatic Shut-Off | user selectable 8 minutes, 60 minutes, or disabled |
Battery Type/Life | CR2032 3V lithium ion / approximately 100 hours |
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 | 68 g (2.4 oz.) without battery |
Ordering Information | HI98319 is supplied with protective cap, 35.00 ppt calibration solution sachet (4), CR2032 battery (1), plastic storage case, instrument quality certificate and instructional manual. |
