P/R65 pH/ORP Sensors

4-20 mA Output Differential Type

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For added versatility, the P/R65C series, pH or ORP differential probes, are available with an integral encapsulated 4-20 mA two-wire transmitter to feed directly to a PLC or a DCS.


  • Integral two-wire 4-20 mA transmitter can be fed directly to PLC, DCS
  • Accurate differential measurement
  • Eliminates ground loop interference
  • Built-in pre-amp supports up to 3,000' sensor-to-analyzer distance
  • 15 ft. (5m) standard cable length
  • Replaceable saltbridge for extended service life
  • Flow-thru, Hot-tap or submersible mounting
  • Automatic temperature compensation on pH versions
  • Semi-flush face available: reduced buildup
  • Long-lasting
  • Low Maintenance Cost
  • Field-proven
  • 2 year warranty

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