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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:
Our meters, electrodes, buffers, standards, and solutions are designed for a number of applications and industries:
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Premium | Advanced | Basic | |
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Orion Versa Star Pro pH/ISE (VSTAR40 series) | Orion Dual Star pH/ISE Dual Channel (2115000 series) | Orion Star A214 pH/ISE (STARA2140 series) | |
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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 | |
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Orion Star A329 pH/ISE (STARA3290 series) | Orion Star A324 pH/ISE (STARA3240 series) | |
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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 | |
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Eutech ION2700 pH/Ion Bench Meter | |
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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 | |
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Eutech pH 450 Portable Meter | Eutech pH 620 Portable Meter | Eutech ION 6+ Portable Meter | |
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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 |
Premium | Advanced | Basic | |
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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 › |
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 | |
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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 |
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.
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 ›
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 |
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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 |
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
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. |
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.