STs Series Cable Replacement
Our water quality instruments are designed with ease-of-use in mind. See how easily you can remove the pHionics STs Series™ cable to switch the cable lengths or replace a damaged one in this quick video. No special tools required!
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Recent Articles

Factors Affecting Dissolved Oxygen
Salinity, pressure, and temperature all influence dissolved oxygen concentration in different ways. This article goes over how to account for these factors to ensure accurate results.

Comparison of Dissolved Oxygen Sensors
This article goes over what dissolved oxygen is and the different sensors we use to measure it in real-time. It specifically focuses on comparing galvanic, polarographic, and optical technologies to help you determine what is best for your application.

Linear Conversion of Conductivity To Salinity
This article provides a linear equation for scaling temperature-compensated conductivity measurements to salinity with most monitoring devices. It also goes over how we obtained it from the Practical Salinity Scale of 1978 and explains potential margins of error.