Designed for use in water treatment applications. Sensors measure on-line, in real-time, and are available in two ranges for detecting ppm levels of free chlorine can be measured between pH 5.5 to 8.0. Sensors have some cross reactivity with ozone, bromine, and chlorine dioxide.

Sensors feature an internal ATC and signal conditioner to provide a 4 to 20 mA output signal over the measurement range. Sensors and flow cells can be used for new installations or as replacements for other 4 to 20 mA output sensors. Install in existing loop-powered systems or order powered panel meter 94785-12.

Service life exceeds one year in most applications. Membrane caps and fill solution can be replaced to maximize sensor life; order separately.