Electrochemistry: pH, conductivity, turbidity, DO, ISE

Electrochemistry: pH, conductivity, turbidity, DO, ISE

Accuracy you can trust

Meet your electrochemistry needs with an extensive range of meters, electrodes, buffers, and kits designed to make your complex lab and field measurements routine and reliable.

Meter Selection Guide

Get the best-fit product for water analysis with our interactive selection guide:

What are the differences between the series?

Thermo Scientific™ Orion™ Versa Star Pro™

Thermo Scientific™ Orion™ Versa Star Pro™

Information rich, extended functionality, enhanced guided calibration.

Thermo Scientific™ Orion Star™ Series

Thermo Scientific™ Orion Star™ Series

Clear, informative, guided calibrations.

Thermo Scientific™ Orion Lab Star Series

Thermo Scientific™ Orion Lab Star Series

Budget friendly, simplified functions, small foot-print.

Top Categories

Top Categories

Benchtop Meters

High-quality meters are essential to the critical, routine tasks you perform every day. The portfolio of benchtop meters from Thermo Scientific are designed to help you meet your sample analysis challenges across a wide range of industries and applications. Offering simple, complete systems that are seamlessly integrated to help address your measurement needs.


Thermo Scientific™ Orion ROSS Electrodes have driven efficiency and precision in ISE and pH testing. The original ROSS pH electrode was the first of its kind to use a redox reference system. The redox system provides a stable reading within seconds and increased accuracy by at least 10 times compared to conventional electrodes.

Portable Meters

Get high accuracy and premium performance in the most demanding locations with the Thermo Scientific™ Orion™ Star Portable Meters, designed for field testing a range of parameters including temperature-corrected pH, ion concentration, conductivity, and dissolved oxygen measurements.


Measure clarity at the source. Determine the clarity of your sample due to particulate content and meet regulatory requirements when using a Thermo Scientific™ Orion™ AQUAfast Turbidity Meter. AQUAfast Turbidity meters feature white and infrared sources and are designed with convenience and portability in mind.

Potentiometric Titrators for Performing Automated pH, Redox, or Ion Titrations

Electrochemistry technology coupled with a state-of-the-art reagent dispensing system to create a modern, simplified automated titrator designed to make performing titrations easier, more reliable, more reproducible and faster than manual titrations.

Solutions, Standards and Buffers

Whether in the laboratory or in the field, you need to be able to rely on your pH, ion concentration, conductivity, redox potential and dissolved oxygen measurements. Using high-quality solutions to calibrate and maintain your sensors is the best way to ensure your data is both accurate and reproducible.

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