Perform your ion concentration measurements with confidence
Achieve precise and reliable ion concentration measurements with Orion bench and portable ion concentration meters. Ideal for various applications, including pharmaceuticals, environmental monitoring, agriculture, food and beverage production and more, Orion ion concentration meters help you meet industry standards and achieve regulatory compliance. Combining advanced technology, user-friendly interfaces, and robust construction, these meters ensure accurate results. Suitable for both lab and field use, they measure using ion-selective electrode technology. Explore Orion ion concentration meters for precision and reliability. Browse our complete portfolio or let one of our experts assist you in making the right selection.
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- Orion Bench Meter
- Orion Portable Meter
- Eutech Bench Meters
- Eutech Portable Meters
Premium | Advanced | ||
|---|---|---|---|
| Orion Versa Star Pro pH/Ion Bench Meter (Versa Star Pro series) | Orion Pro Star PI217 Dual Channel pH/Ion Bench Meter (Pro Star series) | Orion Pro Star PI214 pH/Ion Bench Meter (Pro Star series) | |
| Versatile, high-performance laboratory meters | Easy to use, dependable laboratory meters | Easy to use, dependable laboratory meters | |
| Ideal applications | Pharmaceuticals, biotechnology, industrial | Environmental, water/ wastewater, food & beverage, industrial | Environmental, water/ wastewater, food & beverage, industrial |
| pH range | -2.000 to 20.000 | -2.000 to 20.000 | -2.000 to 20.000 |
| pH resolution | 0.001 / 0.01 / 0.1 | 0.001 / 0.01 / 0.1 | 0.001 / 0.01 / 0.1 |
| pH calibration points | Up to 6 | Up to 5 | Up to 5 |
| mV, RmV, ORP modes | Yes | Yes | Yes |
| Automatic buffer sets | USA/NIST, DIN, custom | USA/NIST, DIN, pure water, standard, custom | USA/NIST, DIN, pure water, standard, custom |
| Ion concentration range | 0.0001 to 19990 | 0.0001 to 19990 | 0.0001 to 19990 |
| Incremental techniques | Single known addition or subtraction, double known addition or subtraction, analyte (sample) addition or subtraction | Single known addition or subtraction, double known addition or subtraction, analyte (sample) addition or subtraction | Single known addition or subtraction, double known addition or subtraction, analyte (sample) addition or subtraction |
| Temperature range | -5 to 105°C 23 to 221°F | -30 to 130°C -22 to 266°F | -30 to 130°C -22 to 266°F |
| Number of channels | 4, customizable with modules | 2 | 1 |
| Stirrer probe inputs | 2 | 2 | 1 |
| Display | 5.3-inch, backlit color display | 7-inch, high-resolution, backlit color display | 7-inch, high-resolution, backlit color display |
| Touchscreen | No | Yes | Yes |
| Onscreen text prompts | Step-by-step calibration and guided setup instructions | Step-by-step calibration and guided setup instructions | Step-by-step calibration and guided setup instructions |
| Identification options | Electrode ID, sample ID, user ID | Electrode ID, sample ID, user ID | Electrode ID, sample ID, user ID |
| Data log | 2000 with date/time | 10000 with date/time | 10000 with date/time |
| Calibration log | 30 per parameter and channel | 20 per parameter and channel | 20 per parameter |
| Data export options | Computer, printer | Computer, printer, USB flash drive | Computer, printer, USB flash drive |
| 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. PSTAR-PWR), 9 DC adapter, 2.0A |
Premium | Advanced | |
|---|---|---|
| Orion Star A329 pH/ISE (STARA3290 series) | Orion Star A324 pH/ISE (STARA3240 series) | |
| Versatile, powerful, multiparameter meter | Rugged and dependable multi-parameter meter | |
| Ideal for applications in: | Industrial—waste water, drinking water, food & beverage; Environmental—lakes, ponds | Industrial—waste water, cooling tanks; Environmental—lakes, ponds |
| pH range | –2.000 to 20.000 | –2.000 to 20.000 |
| pH resolution | 0.1/0.01/0.001 | 0.1/0.01/0.001 |
| pH relative accuracy | ±0.002 | ±0.002 |
| pH calibration points | Up to 5 | Up to 5 |
| pH calibration editing | Yes | Yes |
| Range (mV) | ±2000.0 mV | ±2000.0 mV |
| Resolution (mV) | 0.1 mV | 0.1 mV |
| Relative accuracy | ±0.2 mV or ±0.05% of reading, whichever is greater | ±0.2 mV or ±0.05% of reading, whichever is greater |
| EH ORP mode | Yes | Yes |
| Range (ISE) | 0.0001 to 19,900 | 0.0001 to 19,900 |
| Resolution (ISE) | 0.0001 minimum, auto ranging, up to 3 significant digits (user selectable) | 0.0001 minimum, auto ranging, up to 3 significant digits (user selectable) |
| Relative accuracy (ISE) | ±0.2 mV or ±0.05% of reading, whichever is greater | ±0.2 mV or ±0.05% of reading, whichever is greater |
| Units | ppm, M, mg/L, %, ppb, none | ppm, M, mg/L, %, ppb, none |
| Calibration points | Up to 5 | Up to 5 |
| Calibration editing | Yes | Yes |
| Calibration features | Linear point to point, non-linear selectable auto-blank, low concentration range stability | Linear point to point, non-linear selectable auto-blank, low concentration range stability |
| Range (temperature) | –5 to 105ºC, 23 to 221ºF | –5 to 105ºC, 23 to 221ºF |
| Resolution (temperature) | 0.1ºC, 0.1ºF | 0.1ºC, 0.1ºF |
| Relative accuracy (temperature) | ±0.1ºC, ±0.1ºF | ±0.1ºC, ±0.1ºF |
| Temperature offset calibration | 1 point | 1 point |
| Number of datalogs | 5,000 with time and date stamp | 5,000 with time and date stamp |
| Log function | Manual, ready (includes AUTOREAD), timed | Manual, ready, (includes AUTO-READ), timed |
| pH electrode or ISE | BNC, reference pin | BNC, reference pin |
| Conductivity or ATC probe | 8-pin mini DIN | 8-pin mini-DIN |
| DO probe | 9-pin mini-DIN | -- |
| Outputs | RS232, USB | RS232, USB |
| AC adapter | Optional—universal, 100–240VAC | Optional—universal, 100-240VAC |
| Battery power | Included—4AAs | Included—4 AAs |
| Battery life | 800 hrs | 800 hrs |
| Enhance your productivity with accessories for your benchtop and portable meters.Meter Accessories › | ||
Advanced | |
|---|---|
| Eutech ION2700 pH/Ion Bench Meter | |
| Economical, routine laboratory meters | |
| pH range | –2.000 to 20.000 |
| pH resolution | 0.001 / 0.01 / 0.1 |
| pH calibration points | Up to 6 |
| mV, RmV modes | Yes |
| Ion concentration range | 0.001 to 19900 ppm |
| Ion calibration points | 2 to 8 |
| Range (temperature) | 0.0 to 100.0 °C, 32.0 to 212.0 °F |
| Number of channels | 1 |
| Data log | 500 with date/time |
| Calibration log | Most recent viewable on meter and stored in meter memory |
| Data export options | RS232 |
| Power supply | Universal, 100-240VAC, 50/60 Hz, Cat. No. 60X426401 |
| Premium | Advanced | Basic | |
|---|---|---|---|
| Eutech pH 450 Portable Meter | Eutech pH 620 Portable Meter | Eutech ION 6+ Portable Meter | |
 |  |  | |
| pH range | –2.00 to 16.00 pH | -2.000 to 20.000 pH | 0.00 to 14.00 pH |
| pH resolution | 0.01 pH | 0.1 / 0.01 / 0.001 pH | 0.01 pH |
| pH relative accuracy | ±0.01 pH | ±0.002 pH | ±0.01 pH |
| pH calibration points | Up to 6 | Up to 6 | Up to 3 |
| Range (mV) | ±2000 mV | ±2000 mV | ±500 mV |
| Resolution (mV) | 0.1 mV ±999.9 mV; 1 mV beyond | 0.1 mV | 0.1 mV (±199.9 mV) / 1 mV beyond |
| Relative accuracy | ±0.2 mV +2 LSD or +0.5 % of reading; whichever is greater | ±0.2 mV + 1 LSD | ±0.2 mV / ±2 mV + 1 LSD |
| pH ORP Mode | --- | Yes | Yes |
| Range (ISE) | 0.0 to 2000 ppm | 0.001 to 19900 | 0.01 to 0.99 / 1.0 to 199.9 / 200 to 1999 ppm |
| Calibration points | From 2-4 or 2-5 | Up to 8 | Up to 3 |
| 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) | 0.0 to 100.0 ºC |
| Number of datalogs | 500 with time and date stamp | 500 with time and date stamp | --- |
| 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) | --- |
| Battery power | Two AA batteries (included) | Included—(4) AA | 4 x AAA batteries |
Orion Bench Meter
Premium | Advanced | ||
|---|---|---|---|
| Orion Versa Star Pro pH/Ion Bench Meter (Versa Star Pro series) | Orion Pro Star PI217 Dual Channel pH/Ion Bench Meter (Pro Star series) | Orion Pro Star PI214 pH/Ion Bench Meter (Pro Star series) | |
| Versatile, high-performance laboratory meters | Easy to use, dependable laboratory meters | Easy to use, dependable laboratory meters | |
| Ideal applications | Pharmaceuticals, biotechnology, industrial | Environmental, water/ wastewater, food & beverage, industrial | Environmental, water/ wastewater, food & beverage, industrial |
| pH range | -2.000 to 20.000 | -2.000 to 20.000 | -2.000 to 20.000 |
| pH resolution | 0.001 / 0.01 / 0.1 | 0.001 / 0.01 / 0.1 | 0.001 / 0.01 / 0.1 |
| pH calibration points | Up to 6 | Up to 5 | Up to 5 |
| mV, RmV, ORP modes | Yes | Yes | Yes |
| Automatic buffer sets | USA/NIST, DIN, custom | USA/NIST, DIN, pure water, standard, custom | USA/NIST, DIN, pure water, standard, custom |
| Ion concentration range | 0.0001 to 19990 | 0.0001 to 19990 | 0.0001 to 19990 |
| Incremental techniques | Single known addition or subtraction, double known addition or subtraction, analyte (sample) addition or subtraction | Single known addition or subtraction, double known addition or subtraction, analyte (sample) addition or subtraction | Single known addition or subtraction, double known addition or subtraction, analyte (sample) addition or subtraction |
| Temperature range | -5 to 105°C 23 to 221°F | -30 to 130°C -22 to 266°F | -30 to 130°C -22 to 266°F |
| Number of channels | 4, customizable with modules | 2 | 1 |
| Stirrer probe inputs | 2 | 2 | 1 |
| Display | 5.3-inch, backlit color display | 7-inch, high-resolution, backlit color display | 7-inch, high-resolution, backlit color display |
| Touchscreen | No | Yes | Yes |
| Onscreen text prompts | Step-by-step calibration and guided setup instructions | Step-by-step calibration and guided setup instructions | Step-by-step calibration and guided setup instructions |
| Identification options | Electrode ID, sample ID, user ID | Electrode ID, sample ID, user ID | Electrode ID, sample ID, user ID |
| Data log | 2000 with date/time | 10000 with date/time | 10000 with date/time |
| Calibration log | 30 per parameter and channel | 20 per parameter and channel | 20 per parameter |
| Data export options | Computer, printer | Computer, printer, USB flash drive | Computer, printer, USB flash drive |
| 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. PSTAR-PWR), 9 DC adapter, 2.0A |
Orion Portable Meter
Premium | Advanced | |
|---|---|---|
| Orion Star A329 pH/ISE (STARA3290 series) | Orion Star A324 pH/ISE (STARA3240 series) | |
| Versatile, powerful, multiparameter meter | Rugged and dependable multi-parameter meter | |
| Ideal for applications in: | Industrial—waste water, drinking water, food & beverage; Environmental—lakes, ponds | Industrial—waste water, cooling tanks; Environmental—lakes, ponds |
| pH range | –2.000 to 20.000 | –2.000 to 20.000 |
| pH resolution | 0.1/0.01/0.001 | 0.1/0.01/0.001 |
| pH relative accuracy | ±0.002 | ±0.002 |
| pH calibration points | Up to 5 | Up to 5 |
| pH calibration editing | Yes | Yes |
| Range (mV) | ±2000.0 mV | ±2000.0 mV |
| Resolution (mV) | 0.1 mV | 0.1 mV |
| Relative accuracy | ±0.2 mV or ±0.05% of reading, whichever is greater | ±0.2 mV or ±0.05% of reading, whichever is greater |
| EH ORP mode | Yes | Yes |
| Range (ISE) | 0.0001 to 19,900 | 0.0001 to 19,900 |
| Resolution (ISE) | 0.0001 minimum, auto ranging, up to 3 significant digits (user selectable) | 0.0001 minimum, auto ranging, up to 3 significant digits (user selectable) |
| Relative accuracy (ISE) | ±0.2 mV or ±0.05% of reading, whichever is greater | ±0.2 mV or ±0.05% of reading, whichever is greater |
| Units | ppm, M, mg/L, %, ppb, none | ppm, M, mg/L, %, ppb, none |
| Calibration points | Up to 5 | Up to 5 |
| Calibration editing | Yes | Yes |
| Calibration features | Linear point to point, non-linear selectable auto-blank, low concentration range stability | Linear point to point, non-linear selectable auto-blank, low concentration range stability |
| Range (temperature) | –5 to 105ºC, 23 to 221ºF | –5 to 105ºC, 23 to 221ºF |
| Resolution (temperature) | 0.1ºC, 0.1ºF | 0.1ºC, 0.1ºF |
| Relative accuracy (temperature) | ±0.1ºC, ±0.1ºF | ±0.1ºC, ±0.1ºF |
| Temperature offset calibration | 1 point | 1 point |
| Number of datalogs | 5,000 with time and date stamp | 5,000 with time and date stamp |
| Log function | Manual, ready (includes AUTOREAD), timed | Manual, ready, (includes AUTO-READ), timed |
| pH electrode or ISE | BNC, reference pin | BNC, reference pin |
| Conductivity or ATC probe | 8-pin mini DIN | 8-pin mini-DIN |
| DO probe | 9-pin mini-DIN | -- |
| Outputs | RS232, USB | RS232, USB |
| AC adapter | Optional—universal, 100–240VAC | Optional—universal, 100-240VAC |
| Battery power | Included—4AAs | Included—4 AAs |
| Battery life | 800 hrs | 800 hrs |
| Enhance your productivity with accessories for your benchtop and portable meters.Meter Accessories › | ||
Eutech Bench Meters
Advanced | |
|---|---|
| Eutech ION2700 pH/Ion Bench Meter | |
| Economical, routine laboratory meters | |
| pH range | –2.000 to 20.000 |
| pH resolution | 0.001 / 0.01 / 0.1 |
| pH calibration points | Up to 6 |
| mV, RmV modes | Yes |
| Ion concentration range | 0.001 to 19900 ppm |
| Ion calibration points | 2 to 8 |
| Range (temperature) | 0.0 to 100.0 °C, 32.0 to 212.0 °F |
| Number of channels | 1 |
| Data log | 500 with date/time |
| Calibration log | Most recent viewable on meter and stored in meter memory |
| Data export options | RS232 |
| Power supply | Universal, 100-240VAC, 50/60 Hz, Cat. No. 60X426401 |
Eutech Portable Meters
| Premium | Advanced | Basic | |
|---|---|---|---|
| Eutech pH 450 Portable Meter | Eutech pH 620 Portable Meter | Eutech ION 6+ Portable Meter | |
| | | |
| pH range | –2.00 to 16.00 pH | -2.000 to 20.000 pH | 0.00 to 14.00 pH |
| pH resolution | 0.01 pH | 0.1 / 0.01 / 0.001 pH | 0.01 pH |
| pH relative accuracy | ±0.01 pH | ±0.002 pH | ±0.01 pH |
| pH calibration points | Up to 6 | Up to 6 | Up to 3 |
| Range (mV) | ±2000 mV | ±2000 mV | ±500 mV |
| Resolution (mV) | 0.1 mV ±999.9 mV; 1 mV beyond | 0.1 mV | 0.1 mV (±199.9 mV) / 1 mV beyond |
| Relative accuracy | ±0.2 mV +2 LSD or +0.5 % of reading; whichever is greater | ±0.2 mV + 1 LSD | ±0.2 mV / ±2 mV + 1 LSD |
| pH ORP Mode | --- | Yes | Yes |
| Range (ISE) | 0.0 to 2000 ppm | 0.001 to 19900 | 0.01 to 0.99 / 1.0 to 199.9 / 200 to 1999 ppm |
| Calibration points | From 2-4 or 2-5 | Up to 8 | Up to 3 |
| 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) | 0.0 to 100.0 ºC |
| Number of datalogs | 500 with time and date stamp | 500 with time and date stamp | --- |
| 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) | --- |
| Battery power | Two AA batteries (included) | Included—(4) AA | 4 x AAA batteries |
Browse additional ion concentration products
Meter Accessories
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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.
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.
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Resources
- Brochure: Orion Bench and Portable Meters
- Brochure: Orion Pro Star Bench Meters
- Brochure: Orion Lab Star Bench Meters
- Brochure: Orion Ion Selective Electrodes
- Brochure: Solutions, Standards and Buffers
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.
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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.
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