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Ion Specific (ISE) Meters
Perform your ISE measurements with confidence
High-quality benchtop and portable ISE meters are essential to the routine ion measurements you perform every day. The benchtop and portable meters for ion concentration and temperature analysis are design to help you measure samples across a wide range of applications and deliver the features and functionality you look for in a lab or field instrument:
- Accurate, consistent results – day after day
- Easy-to-use features that maximize productivity and minimize training time
- A wide selection of benchtop and portable meters meet your application requirements and budget
- Durable construction for long product life
- Modular meter designs for maximum configuration flexibility and functional expandability to help address your evolving requirements
- Integration with our line of Thermo Scientific™ ROSS™ electrodes - offering a complete solution with total confidence
Our meters, electrodes, buffers, standards, and solutions are designed for a number of applications and industries:
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Premium | Advanced | Basic | |
|---|---|---|---|
| Orion Versa Star Pro pH/ISE (VSTAR40 series) | Orion Dual Star pH/ISE Dual Channel (2115000 series) | Orion Star A214 pH/ISE (STARA2140 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 |
| pH range | –2.000 to 20.000 | –2.000 to 19.999 | –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 6 | Up to 5 |
| Automatic buffer sets | USA/NIST, DIN, or Custom | USA/NIST or DIN | USA/NIST or DIN |
| mV, RmV modes | Yes | Yes | Yes |
| ISE range | 0.0001 to 19990 | 0.0001 to 19900 | 0.0001 to 19900 |
| 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 | --- |
| Temperature range | -5 to 105 °C, 22 to 221 °F | -5 to 105 ºC, 23 to 221 ºF | -5 to 105 ºC, 23 to 221 ºF |
| Number of channels | 4, customizable with modules | 2 | 1 |
| Stirrer probe inputs | 2 | 1 | 1 |
| Data log | 2,000 with date/time | 1,000 with date/time | 2,000 with date/time |
| Calibration log | 30 per mode | 10 | 10 |
| Identification options | Electrode ID, sample ID, user ID | Electrode ID, sample ID | Sample ID, user ID |
| Data export options | USB (2), RS232 | USB, RS232 | USB, RS232 |
| Power supply | Universal, 100–240VAC, 50–60Hz (Cat. No. STARA-PWR) | Universal, 100–240VAC, 50–60Hz (Cat. No. 1010003) | Universal, 100–240VAC, 50–60Hz (Cat. No. 1010003) or 4 AA batteries |
| Enhance your productivity with accessories for your benchtop and portable meters. Meter Accessories › | |||
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 › | ||
Premium | Advanced | Basic | |
|---|---|---|---|
| Orion Versa Star Pro pH/ISE (VSTAR40 series) | Orion Dual Star pH/ISE Dual Channel (2115000 series) | Orion Star A214 pH/ISE (STARA2140 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 |
| pH range | –2.000 to 20.000 | –2.000 to 19.999 | –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 6 | Up to 5 |
| Automatic buffer sets | USA/NIST, DIN, or Custom | USA/NIST or DIN | USA/NIST or DIN |
| mV, RmV modes | Yes | Yes | Yes |
| ISE range | 0.0001 to 19990 | 0.0001 to 19900 | 0.0001 to 19900 |
| 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 | --- |
| Temperature range | -5 to 105 °C, 22 to 221 °F | -5 to 105 ºC, 23 to 221 ºF | -5 to 105 ºC, 23 to 221 ºF |
| Number of channels | 4, customizable with modules | 2 | 1 |
| Stirrer probe inputs | 2 | 1 | 1 |
| Data log | 2,000 with date/time | 1,000 with date/time | 2,000 with date/time |
| Calibration log | 30 per mode | 10 | 10 |
| Identification options | Electrode ID, sample ID, user ID | Electrode ID, sample ID | Sample ID, user ID |
| Data export options | USB (2), RS232 | USB, RS232 | USB, RS232 |
| Power supply | Universal, 100–240VAC, 50–60Hz (Cat. No. STARA-PWR) | Universal, 100–240VAC, 50–60Hz (Cat. No. 1010003) | Universal, 100–240VAC, 50–60Hz (Cat. No. 1010003) or 4 AA batteries |
| Enhance your productivity with accessories for your benchtop and portable meters. Meter Accessories › | |||
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 › | ||
Explore versatile meters that combine testing capabilities
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.
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.
View all meter accessories ›
Thermo Scientific Featured ISE Meters
Focused on
Ease-of-Use
- Large, easy-to-view displays help make recording measurements easier, faster and can help reduce documentation errors
- Onscreen instructions provide guidance on calibration and setup for more consistent operation with minimum training
Provide Fast and Reliable Measurements
- Selectable read modes and reading stability indicator capture and notify when measurements are ready
- Calibration information shown with measurements and selectable alarms help to ensure measurement integrity
Assist with Compliance Requirements
- Measure ion concentration with temperature
- Perform up to a six point ion concentration calibration with selectable units and adjustable stability criteria
- Select a meter with incremental techniques to perform known addition, known subtraction, analyte (sample) addition or subtraction analysis
Optimize your ISE measurement process
Whether working in food and beverage, pharmaceuticals, energy and power, education, government, or water and wastewater management, you can count on Thermo Scientific Orion ISE meters to help you meet regulatory standards, ensure quantity control protocols are met, achieve your safety goals, and accelerate your path from challenge to solution.
Learn more about the regulatory requirements the benchtop and portable meters can assist with.
International standards for regulatory compliance requirements:
Parameter | EPA | SM | ASTM | ISO | China MEP | USP | EP | AOAC | Other |
|---|---|---|---|---|---|---|---|---|---|
pH | EPA 150.1 | 4500-H+(B) | D1293 (A,B) | 10523 | GB/T 6920 | <791> | 2.2.3 | 973.41 | FDA - 21 CFR 114.90 |
pH of Soil/Solid Waste | SW-846 9040C & 9045D | D4972 | 10390 | GB/T15555 | 994.16 - 994.18 | USDA NRCS | |||
Conductivity | EPA 120.1; SW-846 9050A | 2510 (B) | D1125 (A) | 7888 | n/a | <645> | 2.2.38 | 973.40 | PSS-78 (salinity) |
Dissolved Oxygen | 4500-O (G) | D888 (B, C) | 17289; 5814 | HJ506 | |||||
BOD | 5210 (B) | 5815 | HJ505 | 973.44 | |||||
Fluoride | SW-846 9214 | 4500-F (C ) | D1179 (B) | 10359 | GB7484 | ||||
Ammonia | 4500-NH3 (D, E) | D1426 (B) | 6778 | ||||||
Nitrate | Orion 601; SW-846 9210A | 4500-NO3 (D) | |||||||
Sulfide | SW-846 9215 | 4500-S2 (G) | D4658 | ||||||
Cyanide | SW-846 9213 | 4500-CN (F) | D2036 (A) | ||||||
Chloride | SW-846 9212 | 4500-Cl (D) | D512 (C) | GB11896 | |||||
Bromide | SW-846 9211 |
| SM: Standard Methods for the Examination of Water and Wastewater. APHA, AWWA, WEF. | |
| ASTM: American Society for the Testing and Materials | |
| ISO: International Organization for Standardization | |
| USP: United States Pharmacopeia | |
| EP: European Pharmacopeia | |
| China MEP: China Ministry of Environmental Protection | |
| AOAC: Association of Official Analytical Chemists | |
| NRCS: Natural Resources Conservation Service | |
| PSS-78: Practical Salinity Scale of 1978 | |
| FDA: U.S. Food and Drug Administration | |
| USDA: United Stated Department of Agriculture |
Virtual Demo
Get answers to your top water analysis and water purification questions and see products in action. Sign up for a demo to learn about:
· pH & Multiparameter Benchtop & Portable Meters
· Electrodes (pH Electrodes, ISE, Conductivity, DO)
· Potentiometric Titrators
· Spectrophotometers
· Water Purification Systems
See our complete list of ISE measurement offerings
Electrodes, Standards and Solutions  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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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.
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