The Pyxis ST-71X Series Industrial pH & ORP Sensors are designed for process water, industrial water, wastewater, and cooling water applications. An embedded transmitter allows use in 4-20mA or RS-485 Modbus formats, with temperature output available in Modbus mode. Features include oversized platinum disk for ORP, flat pH bubble sensing element for resistance to turbid waters, and enlarged salt bridge design for extended sensor life.

No electrode changeout or KCl refill is required; sensors are designed for end-of-life swap. Each sensor includes a 6-foot cable with 7-pin quick adapter and a 1.5-foot flying lead for rapid installation. The ST-71X series comes with a 3/4″ NPT CPVC installation tee for inline applications, with submersion adapter available. Operating temperature 4–49°C, pressure up to 100 psi, IP67 rating.