pHionics Inc. products

With over 40 years in the water quality business and customers like IBM, Siemens, and Lawrence-Livermore Berkeley Labs, pHionics has the experience and pH sensors you need to succeed.

The pHionics STs Series™ Conductivity is a water quality sensor designed to pair with a datalogger or RTU for real-time data capture.  A narrow diameter allows the STs Series to go places others can’t while the chemical-resistant housing ensures the sensor can stay there for many years.  Proprietary electrode technology provides stable measurements to reduce calibration frequency.  

The pHionics STs Series Dissolved Oxygen sensor (or sonde) accurately measures dissolved oxygen (0-20 mg/L or percent saturation) and temperature (0-50°C) over long periods of time with little maintenance required.  These measurements are output via two noise-resistant 4-20 mA signals compatible with most systems. A narrow diameter allows the STs Series to go where other sensors cannot while the durable, chemical-resistant housing ensures many years in-use.  The electrode tip (anode) has a large surface area that improves oxygen exchange consistency across the membrane while reducing the frequency of fouling.hange consistency across the membrane while reducing the frequency of fouling.

If you want a user-friendly, low-maintenance ORP monitoring system, then this 4-20 mA ORP (redox) sensor is your answer.

With over 40 years in the water quality business and customers like IBM, Seimens, and Lawrence-Livermore Berkeley Labs, pHionics has the experience and products you need to succeed.

The pHionics STs Series ORP (redox) Electrode is designed for quick and simple replacement of an old or damaged electrode without requiring any special tools.  This is the exact same as the original electrodes provided with the purchase of a STs Series ORP (redox) Sensor and is intended for a wide range of environmental applications. The electrode has an epoxy body with a glass bulb, platinum band, and Teflon™ double junction protection for high stability and longevity in harsh applications.

The pHionics STs Series Dissolved Oxygen Electrode is designed for quick and simple replacement of an old or damaged electrode without requiring any special tools.  This is the exact same as the original electrode provided with the purchase of a STs Series Dissolved Oxygen Sensor and is intended for a wide range of applications, from environmental datalogging to wastewater treatment. The electrode is galvanic with a large silver anode tip and propionic acid fill solution inside.  The large surface area of the anode ensures a long-lasting electrode with typical lifespan of 6 months to 2 years.