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:

  • General laboratory testing
  • R&D
  • Government compliance
  • Wastewater treatment
  • Pharmaceutical
  • Power generation
  • Drinking water
  • Food & beverage testing
  • Environment
  • General industrial processing

Select your Ion bench or portable meter

 

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)
 Premium benchtop Ion Specific (ISE) MetersAdvanced benchtop Ion Specific (ISE) MetersBasic benchtop Ion Specific (ISE) Meters
 Versatile, high-performance laboratory measurement systemEasy to use, dependable laboratory metersEconomical, simplified
laboratory meters
Ideal for
applications in:
Pharmaceuticals, biotechnology, food and beverage, industrialWater, 
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 resolution0.001/0.01/0.1 0.001/0.01/0.1 0.001/0.01/0.1 
pH calibration pointsUp to 6 Up to 6Up to 5
Automatic buffer setsUSA/NIST, DIN, or CustomUSA/NIST or DINUSA/NIST or DIN
mV, RmV modesYes Yes Yes 
ISE range0.0001 to 19990 0.0001 to 19900 0.0001 to 19900 
Incremental techniquesSingle known addition or subtraction, double known addition or subtraction, analyte (sample) addition or subtractionSingle 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 modules21
Stirrer probe inputs211
Data log2,000 with date/time1,000 with date/time2,000 with date/time
Calibration log30 per mode1010
Identification optionsElectrode ID, sample ID, user IDElectrode ID, sample IDSample ID, user ID
Data export optionsUSB (2), RS232USB, RS232USB, RS232
Power supplyUniversal, 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)
 Premium portable Ion specific ISE metersAdvanced portable Ion specific ISE meters
 Versatile, powerful, multiparameter meterRugged and dependable multi-parameter meter
Ideal for
applications in:
Industrial—waste water, drinking water, food & beverage; Environmental—lakes, pondsIndustrial—waste water, cooling tanks; Environmental—lakes, ponds
pH range–2.000 to 20.000–2.000 to 20.000
pH resolution0.1/0.01/0.0010.1/0.01/0.001
pH relative accuracy±0.002±0.002
pH calibration pointsUp to 5Up to 5
pH calibration editingYesYes
Range (mV)±2000.0 mV±2000.0 mV
Resolution (mV)0.1 mV0.1 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 modeYesYes
Range (ISE)0.0001 to 19,9000.0001 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
Unitsppm, M, mg/L, %, ppb, noneppm, M, mg/L, %, ppb, none
Calibration pointsUp to 5Up to 5
Calibration editingYesYes
Calibration featuresLinear point to point, non-linear selectable auto-blank, low concentration range stabilityLinear 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, 0.1ºF0.1ºC, 0.1ºF
Relative accuracy (temperature)±0.1ºC, ±0.1ºF±0.1ºC, ±0.1ºF
Temperature offset calibration1 point1 point
Number of datalogs5,000 with time and date stamp5,000 with time and date stamp
Log functionManual, ready (includes AUTOREAD), timedManual, ready, (includes AUTO-READ), timed
pH electrode or ISEBNC, reference pinBNC, reference pin
Conductivity or ATC probe8-pin mini DIN8-pin mini-DIN
DO probe9-pin mini-DIN--
OutputsRS232, USBRS232, USB
AC adapterOptional—universal, 100–240VACOptional—universal, 100-240VAC
Battery powerIncluded—4AAsIncluded—4 AAs
Battery life800 hrs800 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)
 Premium benchtop Ion Specific (ISE) MetersAdvanced benchtop Ion Specific (ISE) MetersBasic benchtop Ion Specific (ISE) Meters
 Versatile, high-performance laboratory measurement systemEasy to use, dependable laboratory metersEconomical, simplified
laboratory meters
Ideal for
applications in:
Pharmaceuticals, biotechnology, food and beverage, industrialWater, 
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 resolution0.001/0.01/0.1 0.001/0.01/0.1 0.001/0.01/0.1 
pH calibration pointsUp to 6 Up to 6Up to 5
Automatic buffer setsUSA/NIST, DIN, or CustomUSA/NIST or DINUSA/NIST or DIN
mV, RmV modesYes Yes Yes 
ISE range0.0001 to 19990 0.0001 to 19900 0.0001 to 19900 
Incremental techniquesSingle known addition or subtraction, double known addition or subtraction, analyte (sample) addition or subtractionSingle 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 modules21
Stirrer probe inputs211
Data log2,000 with date/time1,000 with date/time2,000 with date/time
Calibration log30 per mode1010
Identification optionsElectrode ID, sample ID, user IDElectrode ID, sample IDSample ID, user ID
Data export optionsUSB (2), RS232USB, RS232USB, RS232
Power supplyUniversal, 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)
 Premium portable Ion specific ISE metersAdvanced portable Ion specific ISE meters
 Versatile, powerful, multiparameter meterRugged and dependable multi-parameter meter
Ideal for
applications in:
Industrial—waste water, drinking water, food & beverage; Environmental—lakes, pondsIndustrial—waste water, cooling tanks; Environmental—lakes, ponds
pH range–2.000 to 20.000–2.000 to 20.000
pH resolution0.1/0.01/0.0010.1/0.01/0.001
pH relative accuracy±0.002±0.002
pH calibration pointsUp to 5Up to 5
pH calibration editingYesYes
Range (mV)±2000.0 mV±2000.0 mV
Resolution (mV)0.1 mV0.1 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 modeYesYes
Range (ISE)0.0001 to 19,9000.0001 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
Unitsppm, M, mg/L, %, ppb, noneppm, M, mg/L, %, ppb, none
Calibration pointsUp to 5Up to 5
Calibration editingYesYes
Calibration featuresLinear point to point, non-linear selectable auto-blank, low concentration range stabilityLinear 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, 0.1ºF0.1ºC, 0.1ºF
Relative accuracy (temperature)±0.1ºC, ±0.1ºF±0.1ºC, ±0.1ºF
Temperature offset calibration1 point1 point
Number of datalogs5,000 with time and date stamp5,000 with time and date stamp
Log functionManual, ready (includes AUTOREAD), timedManual, ready, (includes AUTO-READ), timed
pH electrode or ISEBNC, reference pinBNC, reference pin
Conductivity or ATC probe8-pin mini DIN8-pin mini-DIN
DO probe9-pin mini-DIN--
OutputsRS232, USBRS232, USB
AC adapterOptional—universal, 100–240VACOptional—universal, 100-240VAC
Battery powerIncluded—4AAsIncluded—4 AAs
Battery life800 hrs800 hrs
  Enhance your productivity with accessories for your benchtop and portable meters. Meter Accessories ›


Explore versatile meters that combine testing capabilities

conductivity-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.

Research multiparameter meters


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 ›

pH-meters-accessories

Thermo Scientific Featured ISE Meters

Ease-of-use with Orion multiparameter 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
Reliable electrochemistry measurements in the field

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

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 150.14500-H+(B)D1293 (A,B)10523GB/T 6920<791>2.2.3973.41FDA - 21 CFR 114.90

pH of Soil/Solid Waste

SW-846 9040C & 9045D D497210390GB/T15555  994.16 - 994.18USDA NRCS

Conductivity

EPA 120.1; SW-846 9050A2510 (B)D1125 (A)7888n/a<645>2.2.38973.40PSS-78 (salinity)

Dissolved Oxygen

 4500-O (G)D888 (B, C)17289; 5814HJ506    

BOD

 5210 (B) 5815HJ505  973.44 

Fluoride

SW-846 92144500-F (C )D1179 (B)10359GB7484    

Ammonia

 4500-NH3 (D, E) D1426 (B)6778     

Nitrate

Orion 601; SW-846 9210A4500-NO3 (D)       

Sulfide

SW-846 92154500-S2 (G)D4658      

Cyanide

SW-846 92134500-CN (F)D2036 (A)      

Chloride

SW-846 92124500-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

Request a consultation

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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

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See our complete list of ISE measurement offerings


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.

 

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.

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