Lab Equipment

pH, ISE, Conductivity, and Dissolved Oxygen Products

Affordable and efficient liquid analysis options for your lab

Our pH, ISE, conductivity and dissolved oxygen measurement products are well-known around the world for excellence in water and liquid analysis. Thermo Scientific™ Orion™ product lines include a full range of complementary liquid sensing and measurement.


We have the meters, electrodes, buffers, standards and solutions you need for your application, including:


  • Laboratory
  • R&D
  • Government compliance
  • Pharmaceutical
  • Power generation
  • Drinking water
  • Wastewater treatment
  • Food and beverage manufacturing
  • Environmental
  • General industrial processing


Find the exact pH electrode that you need
for your application
There are many different factors to consider when selecting an Orion pH Electrode to ensure the best match for your application. Use this interactive selection guide to help you choose the correct pH electrode.

Electrode Selection Guide