EAH OPCF81 pH Sensor


Industrial, High Performance pH Sensor
* Cable sold separately *

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  • Industrial, rugged pH probe, with waterproof cable connector
  • Measures 0-14pH, 0 to 110 °C (32 to 230 °F)
  • Head options for concave, flat, or protective guard
  • Cast-In-Place solid reference electrolyte helps maintain a constant reference cell potential
  • Porous Teflon liquid junction resists fouling & chemical attacks
  • Internal plunger permits 360 degree mounting
  • Double junction reference cell increases service life in some applications
  • Threaded 3/4 inch NPT on both ends for easy installation
  • High temperature versions, and PT100 sensor output available upon request

EAH OCPF81 Data Sheet

SKU: EAH OCPF81 Category: Tag:


The Endress & Hauser EAH OPCF81 Industrial, rugged, high performance pH sensors have a built-in internal plunger, permitting 360 degree mounting orientation. Concave and flat membrane head designs are available for bulb protection, and are manufactured with a cast-in-place solid reference electrolyte to maintain a constant reference cell potential.
The EAH OPCF81 consists of a porous Teflon liquid junction which resists fouling & chemical attacks, and consists of a double junction reference cell for increased service life. Threaded 3/4 inch NPT ends, or smooth surface probes as well as options for submersible probe holders, cables, and wiring terminations. Optional high temperature versions, and PT100 temperature output are also available.

Visit our company website page for more information: pH Sensors

Recommended pH Controller: EMEC pH Controllers

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Additional information

Head / Bulb type

Flat, Concave, Protective guard


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