Back To Top
Rosemount™ 385+ General Purpose pH/ORP Sensor
The Rosemount 385+ Retractable pH/ORP sensor can support a wide variety of industrial applications. It is designed for applications where the process cannot be shut down and a separate sample stream is difficult or impossible to provide. The 385+ body is constructed with a standard titanium tube and Tefzel, allowing the sensor to be used in harsh applications such as bleach lines in paper mills.
Rosemount™ 385+ General Purpose pH/ORP Sensor


Measurement Range
pH: 0 to 14
ORP: -1500 to +1500 mV
Ambient Temperature
0 to 100° C (212° F)


  • RETRACTABLE OPTIONS allow sensors to be easily removed and replaced under pressure without process shutdown.
  • MAXIMUM CHEMICAL RESISTANCE with a disposable Tefzel and titanium design
  • INTEGRAL PREAMPLIFIER provides noise free, long distance transmission of the high impedance pH signal.
  • POISONING RESISTANT triple junction reference electrode