Search Thermo Fisher Scientific
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 Pro Conductivity Bench Meter (Versa Star Pro series) | Orion Pro Star EC212 Conductivity Bench Meter (Pro Star series) | Orion Lab Star EC112 Conductivity Bench Meter (Lab Star series) | |
 |  |  | |
| Versatile, high-performance laboratory meters | Easy to use, dependable laboratory meters | Economical, simplified laboratory meters | |
| Ideal applications | Pharmaceuticals, biotechnology, industrial | Environmental, water/ wastewater, food & beverage, industrial | Academic, environmental, power |
| Conductivity range | 0.001 μS/cm to 3000 mS/cm | 0.010 μS/cm to 3000 mS/cm | 0.00 µS/cm to 500 mS/cm |
| Conductivity calibration points | Up to 6 | Up to 5 | Up to 5 |
| Temperature 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, 25 or 30°C | 20 or 25°C |
| Additional modes | TDS, salinity, resistivity | TDS, salinity, resistivity | TDS, salinity |
| Temperature range | -5 to 105°C 23 to 221°F | -30 to 130°C -22 to 266°F | -5 to 105°C 23 to 221°F |
| Number of channels | 4, customizable with modules | 1 | 1 |
| Stirrer probe inputs | 2 | 1 | — |
| Display | 5.3-inch, backlit color display | 7-inch, high-resolution, backlit color display | 5-inch, backlit segmented display |
| Touchscreen | No | Yes | No |
| Onscreen text prompts | Step-by-step calibration and guided setup instructions | Step-by-step calibration and guided setup instructions | Basic calibration and setup instructions |
| Identification options | Electrode ID, sample ID, user ID | Electrode ID, sample ID, user ID | — |
| Data log | 2000 with date/time | 10000 with date/time | 500 with date/time |
| Calibration log | 30 per parameter | 20 per parameter | — |
| Data export options | Computer, printer | Computer, printer, USB flash drive | Computer, printer |
| Power supply | Universal, 100–240 VAC, 50-60 Hz (Cat. No. STARA-PWR) | Universal, 100-240 VAC, 50-60 Hz (Cat. No. PSTAR-PWR), 9 DC adapter, 2.0A | Universal, 100-240 VAC, 50-60 Hz (Cat. No. LSTAR-PWR), 9 DC adapter, 1.3A |
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, 50–60 Hz (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 Pro Conductivity Bench Meter (Versa Star Pro series) | Orion Pro Star EC212 Conductivity Bench Meter (Pro Star series) | Orion Lab Star EC112 Conductivity Bench Meter (Lab Star series) | |
| | | |
| Versatile, high-performance laboratory meters | Easy to use, dependable laboratory meters | Economical, simplified laboratory meters | |
| Ideal applications | Pharmaceuticals, biotechnology, industrial | Environmental, water/ wastewater, food & beverage, industrial | Academic, environmental, power |
| Conductivity range | 0.001 μS/cm to 3000 mS/cm | 0.010 μS/cm to 3000 mS/cm | 0.00 µS/cm to 500 mS/cm |
| Conductivity calibration points | Up to 6 | Up to 5 | Up to 5 |
| Temperature 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, 25 or 30°C | 20 or 25°C |
| Additional modes | TDS, salinity, resistivity | TDS, salinity, resistivity | TDS, salinity |
| Temperature range | -5 to 105°C 23 to 221°F | -30 to 130°C -22 to 266°F | -5 to 105°C 23 to 221°F |
| Number of channels | 4, customizable with modules | 1 | 1 |
| Stirrer probe inputs | 2 | 1 | — |
| Display | 5.3-inch, backlit color display | 7-inch, high-resolution, backlit color display | 5-inch, backlit segmented display |
| Touchscreen | No | Yes | No |
| Onscreen text prompts | Step-by-step calibration and guided setup instructions | Step-by-step calibration and guided setup instructions | Basic calibration and setup instructions |
| Identification options | Electrode ID, sample ID, user ID | Electrode ID, sample ID, user ID | — |
| Data log | 2000 with date/time | 10000 with date/time | 500 with date/time |
| Calibration log | 30 per parameter | 20 per parameter | — |
| Data export options | Computer, printer | Computer, printer, USB flash drive | Computer, printer |
| Power supply | Universal, 100–240 VAC, 50-60 Hz (Cat. No. STARA-PWR) | Universal, 100-240 VAC, 50-60 Hz (Cat. No. PSTAR-PWR), 9 DC adapter, 2.0A | Universal, 100-240 VAC, 50-60 Hz (Cat. No. LSTAR-PWR), 9 DC adapter, 1.3A |
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, 50–60 Hz (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 |
Browse additional conductivity products
Meter Accessories
 |
Shop our comprehensive range of meter accessories designed to boost productivity, safeguard your investment and ensure optimal performance. Our assortment of accessories for bench and portable meters helps streamline your workflow while enhancing your user experience.
Electrodes and Probes
 |
Obtain accurate results with electrodes and probes developed to support the requirements of your sample testing. Choose from a wide variety of parameters, body materials, body styles, fill types, reference systems, junctions and more to meet the needs of your application.
Standards and Solutions
 |
Ensure the reliability of your measurements with our premium standards and solutions. Our high-quality calibration and maintenance solutions are essential for precise and consistent results. Shop a variety of standards, electrode filling solutions, electrode storage solutions and more.
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.
Explore Multiparameter Meters
Measure pH, ion concentration, conductivity, dissolved oxygen, and temperature with a single, powerful meter. Our bench and portable multiparameter meters are designed to increase your productivity in the lab and in the field.
Request Consultation
Get answers to your top water analysis and water purification questions and see products in action. Learn about:
- pH & Multiparameter Benchtop & Portable Meters
- Electrodes (pH Electrodes, ISE, Conductivity, DO)
- Potentiometric Titrators
- Spectrophotometers
- Water Purification Systems
Resources
Support
Validation and qualification (IQ/OQ) services for Thermo Scientific Orion bench and portable meters are currently available through Unity Lab Services in the United States ›
Knowledge Base: Certificates of Analysis and SDS for Orion, ROSS, AQUAfast, AquaMate, and AquaSensors products.
Orion Meters Software and Upgrades
Thermo Scientific Orion benchtop and portable meters are designed to help deliver accurate, consistent results, day after day. Boost productivity by upgrading your software today.
Style Sheet for Global Design System
Style Sheet for Global Design System