Perform your ISE measurements with confidence

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

Available Ion Specific (ISE) Meters


The accuracy and reliability of your ISE measurements depends on the instrumentation you use. Learn more about how you can identify the best match based on your required features, performance, specifications and budget.


Our portable meters are rugged and waterproof, and provide the dependable performance in the field without sacrificing accuracy and reliability.

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: 






China MEP






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


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        


  5210 (B)   5815 HJ505     973.44  


SW-846 9214 4500-F (C ) D1179 (B) 10359 GB7484        


  4500-NH3 (D, E)  D1426 (B) 6778          


Orion 601; SW-846 9210A 4500-NO3 (D)              


SW-846 9215 4500-S2 (G) D4658            


SW-846 9213 4500-CN (F) D2036 (A)            


SW-846 9212 4500-Cl (D) D512 (C)   GB11896        


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

Thermo Scientific ISE Meter Features

Ease-of-use with Orion multiparameter meters

Focused on

  • 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

See our complete list of ISE measurement offerings

Meter Accessories

find the right benchtop meter for your pH and ORP measurement needs

Enhance your productivity while protecting your investment. We offer an assortment of meter accessories for our benchtop and portable meters.

Electrodes & probes

ISE measurement with Orion electrodes, probes and sensors

Learn more about how you can identify the best match based on your required features, performance, specifications and budget.

Buffers & solutions

We offer buffers, electrode storage solutions, electrode cleaning solutions, lab buffer kits, and electrode filling solutions for your ISE measurement needs.


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.

Find your software