Conductivity testing in the lab and in the field

Conductivity testing in the lab and in the field

Thermo Scientific Orion conductivity benchtop meters and portable meters are designed to deliver the features and functionality you look for in a lab or field instrument:

  • 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 robust, long-lasting line of Thermo Scientific 4-cell and 2-cell conductivity probes capable of measuring a wide range of samples at various conductivity values
  • 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

Learn more about the regulatory requirements our benchtop and portable meters can you assist with.

Available Conductivity Meters


The accuracy and reliability of your conductivity 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.


Take your conductivity measurements to the field without sacrificing accuracy and reliability. Our portable meters are rugged and waterproof, and provide the dependable performance that your demanding applications require.

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 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 States Department of Agriculture

Thermo Scientific Conductivity Meter Features

Ease-of-use with Orion multiparameter meters

Focused on
ease of use

  • Large, easy-to-view displays help make recording measurements easier and faster, and can help reduce documentation errors 
  • On-screen 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 conductivity, resistivity, salinity, or TDS with temperature
  • Perform up to a six point conductivity calibration with automatic ranging of measurement values
  • Operate using linear, non-linear, EP (USP), or off-temperature compensation settings with 5, 10, 15, 20 or 25°C reference temperatures

See our complete list of conductivity measurement offerings

Meter Accessories

find the right benchtop meter for your conductivity measurement needs

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

Electrodes & Probes

view our selection of electrodes

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

Buffers & Solutions

view our selection of buffers and solutions

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

Orion pH Meter Selector Tool

Choose the right pH meter for your lab

This interactive Orion pH Meter Selector Tool will help guide you to the ideal Thermo Scientific Orion benchtop or portable meter and accessories based on your requirements. 

Find your meter


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