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Conductivity Meters
Reliable conductivity measurements in the lab and field
Measure conductivity, resistivity, total dissolved solids, and salinity with a Thermo Scientific Orion Conductivity Meter. Regular lab work is done with ease using Orion Bench Conductivity Meters, which provide reliable and accurate measurements with a variety of features to meet your requirements. For a mobile option, Orion Portable Conductivity Meters are built rugged and waterproof for dependable performance, anywhere, anytime. Take advantage of one-hand operation and easy portability for any remote application without sacrificing accuracy and the reliability of your measurements.
Identify the best conductivity meter based on your required features, performance specifications, and budget below, or contact a sales representative to discuss your conductivity measurement needs.
Select your conductivity bench or portable meter
Premium | Advanced | Basic | |
|---|---|---|---|
| Orion Versa Star ProConductivity Bench Meters (VSTAR20 series) | Orion Star A212 Conductivity Bench Meters (Star A210 series) | Orion Lab Star EC112 Conductivity Bench Meters (Lab Star series) | |
 |  |  | |
| Versatile, high-performance laboratory measurement system | Easy to use, dependable laboratory meters | Economical, simplified laboratory meters | |
| Ideal for applications in: | Pharmaceuticals, biotechnology, food and beverage, industrial | Water, wastewater, chemical contract testing | Academic, environmental, power |
| Conductivity range | 0.001 µS to 3000 mS | 0.001 µS to 3000 mS | 0.00 µS/cm to 500 mS/cm |
| Conductivity cal. points | Up to 6 | Up to 5 | Up to 5 |
| Temp. compensation | Linear, nonlinear (nLFn, nLFu), EP/USP, off | Linear, nonlinear (nLFn, nLFu), EP/USP, off | Linear |
| Reference temperature | 5, 10, 15, 20, or 25°C | 5, 10, 15, 20, or 25°C | 20 or 25°C |
| Additional modes | TDS, salinity, resistivity | TDS, salinity, resistivity | TDS, salinity |
| Temperature Range | -5 to 105°C
| -5 to 105°C 23 to 221°F | -5 to 105°C 23 to 221°F |
| Backlit display | Yes | Yes | Yes |
| Number of channels | 4, customizable with modules | 1 | 1 |
| Stirrer probe inputs | 2 | 1 | --- |
| Data log | 2000 with date/time | 2000 with date/time | 500 with date/time |
| Calibration log | 30 per mode | 10 | 1 |
| Identification options | Electrode ID, sample ID, user ID | Sample ID, user ID | --- |
| Data export options | Computer or printer | Computer or printer | Computer or printer |
| Power Supply | Universal, 100–240VAC, 50–60Hz (Cat. No. STARA-PWR) | Universal, 100–240VAC, 50–60Hz (Cat. No. 1010003) or 4 AA batteries | Universal, 100–240VAC, 50–60Hz (Cat. No. LSTAR-PWR), 9 DC adapter, 1.3A |
| Enhance your productivity with accessories for your benchtop and portable meters. Meter Accessories › | |||
Premium | Advanced | Basic | |
|---|---|---|---|
| Orion Star A322 Conductivity Portable Meters (STARA3220 series) | Orion Star A222 Conductivity Portable Meters (STARA2220 series) | Orion Star A122 Conductivity Portable Meters (STARA1220 series) | |
 |  |  | |
| Field meters | Easy to use, dependable field meters | Budget-friendly, simplified field meters | |
| Contract testing, environmental, food and beverage, industrial | Contract testing, environmental, food and beverage, industrial | Education, environmental | |
| Range (conductivity) | 0.001 μS to 3000 mS | 0.001 μS to 3000 mS | 0.01 μS/cm to 200.0 mS/cm |
| 0.001 μS minimum, auto ranging, up to 4 significant digits | 0.001 μS minimum, auto ranging, up to 4 significant digits | ||
| Relative accuracy (conductivity) | 0.5% of reading ±1 digit > 3 μS, 0.5% of reading ±0.01 μS ≤ 3 μS | 0.5% of reading ±1 digit > 3 μS, 0.5% of reading ±0.01 μS ≤ 3 μS | 0.5% reading ±1 digit |
| Calibration points | Up to 5 points | Up to 5 points | 1 |
| Range (resistivity) | 2 ohm to 100 meg-ohm/cm | 2 ohm to 100 meg-ohm/cm | -- |
| Type (salinity) | Practical salinity or natural sea water | Practical salinity | -- |
| Range (salinity) | 0.06 to 80.00 psu, 0.05 to 42.00 ppt | 0.06 to 80.00 psu | -- |
| Range (TDS) | 0.001 to 200.0 ppt | 0.001 to 200.0 ppt | 0 to 19999 mg/L |
| Range (temperature) | -5 to 105ºC, 23 to 221ºF | -5 to 105ºC, 23 to 221ºF | -5 to 105ºC, 23 to 221ºF |
| Number of datalogs | 5000 with time and date stamp | 1000 with time and date stamp | 50 |
| Data export options | RS232, USB | RS232, USB | -- |
| AC adapter | Optional—universal, 100–240 VAC | Optional—universal, 100–240 VAC | Optional—universal, 100–240 VAC |
| Battery power | included—(4) AA | included—(4) AA | included—(4) AA |
| Battery life | 800 hrs | 800 hrs | 2,000 hrs |
| Enhance your productivity with accessories for your benchtop and portable meters. Meter Accessories › | |||
Advanced | Basic | |
|---|---|---|
| Eutech CON2700 Conductivity Bench Meter | Eutech 1720 Conductivity Bench Meter | |
 |  | |
| Economical, routine laboratory meters | Budget-friendly, simple laboratory meters | |
| Conductivity range | 0.050 μS to 500.0 mS | 0.00 µS/cm to 500 mS/cm |
| Conductivity calibration points | Up to 5 | Up to 5 |
| Temp compensation | Linear, pure water | Linear |
| Reference temperature | 15.0 to 30.0 °C | 15.0, 20.0, 25.0 or 30.0 °C |
| Additional modes | TDS, salinity, resistivity | TDS, salinity |
| Temperature range | 0.0 to 100.0 °C, 32.0 to 212.0 °F | -5.0 to 105.0 °C |
| Backlit display | Yes | Yes |
| Number of channels | 1 | 1 |
| Stirrer probe inputs | 1 | 1 |
| Data log | 500 with date/time | 500 with date/time |
| Calibration log | Most recent viewable on meter and stored in meter memory | Most recent stored in meter memory |
| Data export options | RS232 | Computer or printer |
| Power supply | Universal, 100-240VAC, 50/60 Hz, Cat. No. 60X426401 | Universal, 100–240VAC, 50–60Hz (Cat. No. EB1700PWR), 9 DC adapter, 1.3A |
Watch video and learn more
Features & Benefits of the Eutech 1720 Conductivity Bench Meter
Premium | Advanced | Advanced | Basic | Basic | |
|---|---|---|---|---|---|
| Eutech CON 450 Portable Conductivity Meters | Eutech COND 610 Portable Conductivity Meters | Eutech CON 150 Portable Conductivity Meters | Eutech COND 6+ Portable Conductivity Meters | Eutech TDS 6+ Portable Conductivity Meters | |
 |  |  |  |  | |
| Range (conductivity) | 0 to 200 ms/cm | .. to 2.000 μS 2.000 to 300.0 μS 300.0 μS to 4.000 mS 4.000 to 40.00 mS 40.00 to 500.0 mS | 0 to 200 ms/cm | .. to 199.9 mS | --- |
| Resolution (conductivity) | 0.01 µS to 0.1 ms/cm | 0.01 μS / 0.1 μS / 0.001 mS / | 0.01 µS to 0.1 ms/cm | 0.05 % full scale | --- |
| Relative accuracy (conductivity) | ±1 % full scale | ±1 % full scale + 1 LSD | ±1 % full scale | ±1 % full scale + 1 LSD | --- |
| Calibration points (conductivity) | Auto/manual; 1 point/range | Up to 5 | Auto/manual; 1 point/range | Up to 5 | Up to 5 |
| Range (restivity) | --- | 2.000 to 25.00 Ω 25.00 to 250.0 Ω 250.0 to 3.333 kΩ 3.333 to 500.0 kΩ 500.0 kΩ to 20.00 MΩ | --- | --- | --- |
| Range (salinity) | 0 to 50 ppt | .. to 0.770 ppm 0.770 to 143.3 ppm 143.3 ppm to 2.138 ppt 2.138 to 23.64 ppt 23.64 to 80.00 ppt | --- | --- | --- |
| Type (salinity) | Practical salinity | Practical salinity | --- | --- | --- |
| Range (TDS) | 0 to 200 ppt (TDS factor 1.0) | .. to 2.000 ppm 2.000 to 300.0 ppm 300.0 ppm to 4.000 ppt 4.000 to 40.00 ppt 40.00 to 500.0 ppt | 0 to 200 ppt (TDS factor 1.0) | --- | .. to 9.99 ppm |
| Range (temperature) | -10.0 to 110.0 ºC (14.0 to 230.0 ºF) | -10.0 to 110.0 °C (14.0 to 230.0 °F) | -10.0 to 110.0 ºC (14.0 to 230.0 ºF) | 0.0 to 100.0 ºC / 32.0 to 212 ºF | 0.0 to 100.0 ºC / 32.0 to 212 ºF |
| Number of datalogs | 500 with time and date stamp | 500 with time and date stamp | 150 | --- | --- |
| Data export options | USB or RS232 | RS232C through LED, IrDA | --- | --- | --- |
| AC adapter | 9 V DC adapter, 1.3 A (100/240 VAC, SMPS) (optional) | 9 V DC adapter (500 mA) | 9 V DC adapter, 1.3 A (100/240 VAC, SMPS) (optional) | --- | --- |
| Battery power | Included—(2) AA | Included—(4) AA | Included—(2) AA | 4 x AAA batteries | 4 x AAA batteries |
Premium | Advanced | Basic | |
|---|---|---|---|
| Orion Versa Star ProConductivity Bench Meters (VSTAR20 series) | Orion Star A212 Conductivity Bench Meters (Star A210 series) | Orion Lab Star EC112 Conductivity Bench Meters (Lab Star series) | |
| | | |
| Versatile, high-performance laboratory measurement system | Easy to use, dependable laboratory meters | Economical, simplified laboratory meters | |
| Ideal for applications in: | Pharmaceuticals, biotechnology, food and beverage, industrial | Water, wastewater, chemical contract testing | Academic, environmental, power |
| Conductivity range | 0.001 µS to 3000 mS | 0.001 µS to 3000 mS | 0.00 µS/cm to 500 mS/cm |
| Conductivity cal. points | Up to 6 | Up to 5 | Up to 5 |
| Temp. compensation | Linear, nonlinear (nLFn, nLFu), EP/USP, off | Linear, nonlinear (nLFn, nLFu), EP/USP, off | Linear |
| Reference temperature | 5, 10, 15, 20, or 25°C | 5, 10, 15, 20, or 25°C | 20 or 25°C |
| Additional modes | TDS, salinity, resistivity | TDS, salinity, resistivity | TDS, salinity |
| Temperature Range | -5 to 105°C
| -5 to 105°C 23 to 221°F | -5 to 105°C 23 to 221°F |
| Backlit display | Yes | Yes | Yes |
| Number of channels | 4, customizable with modules | 1 | 1 |
| Stirrer probe inputs | 2 | 1 | --- |
| Data log | 2000 with date/time | 2000 with date/time | 500 with date/time |
| Calibration log | 30 per mode | 10 | 1 |
| Identification options | Electrode ID, sample ID, user ID | Sample ID, user ID | --- |
| Data export options | Computer or printer | Computer or printer | Computer or printer |
| Power Supply | Universal, 100–240VAC, 50–60Hz (Cat. No. STARA-PWR) | Universal, 100–240VAC, 50–60Hz (Cat. No. 1010003) or 4 AA batteries | Universal, 100–240VAC, 50–60Hz (Cat. No. LSTAR-PWR), 9 DC adapter, 1.3A |
| Enhance your productivity with accessories for your benchtop and portable meters. Meter Accessories › | |||
Premium | Advanced | Basic | |
|---|---|---|---|
| Orion Star A322 Conductivity Portable Meters (STARA3220 series) | Orion Star A222 Conductivity Portable Meters (STARA2220 series) | Orion Star A122 Conductivity Portable Meters (STARA1220 series) | |
| | | |
| Field meters | Easy to use, dependable field meters | Budget-friendly, simplified field meters | |
| Contract testing, environmental, food and beverage, industrial | Contract testing, environmental, food and beverage, industrial | Education, environmental | |
| Range (conductivity) | 0.001 μS to 3000 mS | 0.001 μS to 3000 mS | 0.01 μS/cm to 200.0 mS/cm |
| 0.001 μS minimum, auto ranging, up to 4 significant digits | 0.001 μS minimum, auto ranging, up to 4 significant digits | ||
| Relative accuracy (conductivity) | 0.5% of reading ±1 digit > 3 μS, 0.5% of reading ±0.01 μS ≤ 3 μS | 0.5% of reading ±1 digit > 3 μS, 0.5% of reading ±0.01 μS ≤ 3 μS | 0.5% reading ±1 digit |
| Calibration points | Up to 5 points | Up to 5 points | 1 |
| Range (resistivity) | 2 ohm to 100 meg-ohm/cm | 2 ohm to 100 meg-ohm/cm | -- |
| Type (salinity) | Practical salinity or natural sea water | Practical salinity | -- |
| Range (salinity) | 0.06 to 80.00 psu, 0.05 to 42.00 ppt | 0.06 to 80.00 psu | -- |
| Range (TDS) | 0.001 to 200.0 ppt | 0.001 to 200.0 ppt | 0 to 19999 mg/L |
| Range (temperature) | -5 to 105ºC, 23 to 221ºF | -5 to 105ºC, 23 to 221ºF | -5 to 105ºC, 23 to 221ºF |
| Number of datalogs | 5000 with time and date stamp | 1000 with time and date stamp | 50 |
| Data export options | RS232, USB | RS232, USB | -- |
| AC adapter | Optional—universal, 100–240 VAC | Optional—universal, 100–240 VAC | Optional—universal, 100–240 VAC |
| Battery power | included—(4) AA | included—(4) AA | included—(4) AA |
| Battery life | 800 hrs | 800 hrs | 2,000 hrs |
| Enhance your productivity with accessories for your benchtop and portable meters. Meter Accessories › | |||
Advanced | Basic | |
|---|---|---|
| Eutech CON2700 Conductivity Bench Meter | Eutech 1720 Conductivity Bench Meter | |
| | |
| Economical, routine laboratory meters | Budget-friendly, simple laboratory meters | |
| Conductivity range | 0.050 μS to 500.0 mS | 0.00 µS/cm to 500 mS/cm |
| Conductivity calibration points | Up to 5 | Up to 5 |
| Temp compensation | Linear, pure water | Linear |
| Reference temperature | 15.0 to 30.0 °C | 15.0, 20.0, 25.0 or 30.0 °C |
| Additional modes | TDS, salinity, resistivity | TDS, salinity |
| Temperature range | 0.0 to 100.0 °C, 32.0 to 212.0 °F | -5.0 to 105.0 °C |
| Backlit display | Yes | Yes |
| Number of channels | 1 | 1 |
| Stirrer probe inputs | 1 | 1 |
| Data log | 500 with date/time | 500 with date/time |
| Calibration log | Most recent viewable on meter and stored in meter memory | Most recent stored in meter memory |
| Data export options | RS232 | Computer or printer |
| Power supply | Universal, 100-240VAC, 50/60 Hz, Cat. No. 60X426401 | Universal, 100–240VAC, 50–60Hz (Cat. No. EB1700PWR), 9 DC adapter, 1.3A |
Watch video and learn more
Features & Benefits of the Eutech 1720 Conductivity Bench Meter
Premium | Advanced | Advanced | Basic | Basic | |
|---|---|---|---|---|---|
| Eutech CON 450 Portable Conductivity Meters | Eutech COND 610 Portable Conductivity Meters | Eutech CON 150 Portable Conductivity Meters | Eutech COND 6+ Portable Conductivity Meters | Eutech TDS 6+ Portable Conductivity Meters | |
| | | | | |
| Range (conductivity) | 0 to 200 ms/cm | .. to 2.000 μS 2.000 to 300.0 μS 300.0 μS to 4.000 mS 4.000 to 40.00 mS 40.00 to 500.0 mS | 0 to 200 ms/cm | .. to 199.9 mS | --- |
| Resolution (conductivity) | 0.01 µS to 0.1 ms/cm | 0.01 μS / 0.1 μS / 0.001 mS / | 0.01 µS to 0.1 ms/cm | 0.05 % full scale | --- |
| Relative accuracy (conductivity) | ±1 % full scale | ±1 % full scale + 1 LSD | ±1 % full scale | ±1 % full scale + 1 LSD | --- |
| Calibration points (conductivity) | Auto/manual; 1 point/range | Up to 5 | Auto/manual; 1 point/range | Up to 5 | Up to 5 |
| Range (restivity) | --- | 2.000 to 25.00 Ω 25.00 to 250.0 Ω 250.0 to 3.333 kΩ 3.333 to 500.0 kΩ 500.0 kΩ to 20.00 MΩ | --- | --- | --- |
| Range (salinity) | 0 to 50 ppt | .. to 0.770 ppm 0.770 to 143.3 ppm 143.3 ppm to 2.138 ppt 2.138 to 23.64 ppt 23.64 to 80.00 ppt | --- | --- | --- |
| Type (salinity) | Practical salinity | Practical salinity | --- | --- | --- |
| Range (TDS) | 0 to 200 ppt (TDS factor 1.0) | .. to 2.000 ppm 2.000 to 300.0 ppm 300.0 ppm to 4.000 ppt 4.000 to 40.00 ppt 40.00 to 500.0 ppt | 0 to 200 ppt (TDS factor 1.0) | --- | .. to 9.99 ppm |
| Range (temperature) | -10.0 to 110.0 ºC (14.0 to 230.0 ºF) | -10.0 to 110.0 °C (14.0 to 230.0 °F) | -10.0 to 110.0 ºC (14.0 to 230.0 ºF) | 0.0 to 100.0 ºC / 32.0 to 212 ºF | 0.0 to 100.0 ºC / 32.0 to 212 ºF |
| Number of datalogs | 500 with time and date stamp | 500 with time and date stamp | 150 | --- | --- |
| Data export options | USB or RS232 | RS232C through LED, IrDA | --- | --- | --- |
| AC adapter | 9 V DC adapter, 1.3 A (100/240 VAC, SMPS) (optional) | 9 V DC adapter (500 mA) | 9 V DC adapter, 1.3 A (100/240 VAC, SMPS) (optional) | --- | --- |
| Battery power | Included—(2) AA | Included—(4) AA | Included—(2) AA | 4 x AAA batteries | 4 x AAA batteries |
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Meter accessories
Bench meter and portable meter accessories make help protect you and your instruments by simplifying repetitive tasks and providing secure storage and transportation.
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The Thermo Scientific Orion Lab Star EC112 Conductivity Bench Meter is ideally suited for laboratories with users of varying levels of technical expertise and who require a simple-to-calibrate and use meter for routine conductivity, salinity and TDS testing. Watch this video to explore the features available with the Orion Lab Star Conductivity Bench Meter.
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Complete your conductivity measurements faster
We offer buffers, electrode storage solutions, electrode cleaning solutions, lab buffer kits, and electrode filling solutions for your conductivity measurement needs.
Quick and budget-friendly on-the-go electrochemical testing solution that fits in your palm or pocket.
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Quality pH electrodes, standards and solutions are available for a variety of body materials, body styles, fill types, references styles, and functions to meet your needs. |
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