Sample analysis is the foundation to your research

The ability to precisely evaluate the quality of a sample is essential to achieving the highest standards in the lab. Your lab work and your samples depend on it. But how do you get there?

Utilizing the right instruments to help ease your most critical and everyday applications is the key—whether you’re in the field or in the lab. Meet your pH and electrochemistry needs with a portfolio including benchtop meters, portable meters, electrodes, probes, buffers, standards, solutions, and accessories in water and liquid analysis in the laboratory, R&D, government compliance, pharmaceutical, drinking water, wastewater treatment, food and beverage manufacturing, environmental, power generation, and general industrial processing markets.

Browse through our complete portfolio or ask one of our experts to help tailor a solution specific to your needs.

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Featured pH & Electrochemistry Categories


Award-Winning Orion Lab Star Bench Meters

Thermo Scientific Orion Lab Star Bench Meters have been designed for ease of use and are ideal for users with varying levels of technical expertise, from laboratory managers and scientists to students and lab technicians. The instruments also feature large backlit display screens for easy reading and recording of sample measurements. See why it’s the preferred choice for laboratory professionals- named "Best New General Lab Product", Scientists’ Choice Awards 2023.

Featured pH & Electrochemistry Categories

pH & ORP measurement

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

Conductivity Measurement

Our benchtop and portable conductivity meters, conductivity probes, conductivity cells, and conductivity standards are designed to offer maximum repeatability and accuracy in your conductivity readings.

Ion Concentration Measurement (ISE)

Meters, electrodes, and solutions designed to measure a range of ions, including fluoride, chloride, ammonia, sodium, silver sulfide, bromide, cadmium, calcium, carbon dioxide, cyanide, and more.

Dissolved Oxygen Measurement

Dissolved oxygen meters, rugged dissolved oxygen probes, and solutions designed to meet your standards for performance and price for your dissolved oxygen readings.

Multiparameter Meters

Measure pH, ion concentration, conductivity, dissolved oxygen, and temperature with a single, powerful meter. Our benchtop and portable multiparameter meters are designed to increase your productivity in the lab and in the field.

Meter Accessories

Enhance your productivity while protecting your investment. We offer an assortment of accessories for our meters, electrodes, and probes for your testing needs.

Potentiometric Titrators

A better alternative to manual titrations. The Thermo Scientific Orion Star T900 series automated titrators are designed to make performing titrations easier, more reliable and more reproducible than manual titrations.

Pocket Testers

Accurate solutions for on-the-go water analysis. Measure pH, conductivity, total dissolved solids (TDS) salinity and temperature with testers available for many field based applications.

Discrete Analyzers

Our discrete analyzers offer fully-automated, streamlined, and more cost-effective workflow solution to wet chemistry analysis. Simultaneous measurement of pH, conductivity alongside wide range of photometric tests saves time, reduces cost and improves throughput.

Our Online Water Measurement Systems portfolio provides portable, benchtop, and online water analysis solutions.

See the Award-Winning Orion Lab Star in Action

Discover the Thermo Scientific Lab Star Series of Bench Meters for measuring pH, conductivity and dissolved oxygen.

Watch a pH meter calibration using the Orion Lab Star PH111 pH/mV Bench Meter.

Get to know the features of the Thermo Scientific Lab Star PH111 pH Bench Meter.

Learn about the features of the Thermo Scientific Lab Star EC112 Conductivity Bench Meter.

See the features of the Thermo Scientific Lab Star DO113 Dissolved Oxygen Bench Meter.

Related Information

Water Quality Learning Center


Discover how water analysis and water purification technologies are empowering people, industries and communities everywhere  to create a cleaner, healthier, safer world.

Water Quality Resource Library


These resources aim to connect scientists with important resources for learning about water quality—so they can understand how consistent water quality can lead to better results in their work.


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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