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E-direct complements our traditional offering by providing you with a quick, effective way to purchase easy-to-configure, entry-level instrumentation.

E-direct Shop

Analog pH sensor
Purisys CPF201

Compact electrode for power and life sciences industries

  • ©Endress+Hauser
  • ©Endress+Hauser
  • The pH-value of a liquid can be calculated using the potentiometric measurement principle. This video shows what it is about and how this measuring principle works.

Purisys CPF201 is the specialist for pure and ultrapure water. Its integrated stainless steel assembly provides stable and flow-independent measurement at lowest conductivities. Purisys ensures optimum water quality and guarantees highest safety of your products or assets.


  • Stable pH reading and response

  • Elimination of flow dependency errors

  • Patented porous PTFE reference junction

  • Easy installation

Field of application

  • Boiler feed water

  • Power plant applications

  • Pharmaceutical water for injection

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Endress+Hauser (M) Sdn Bhd / Endress+Hauser (Tenaga) Sdn Bhd
No. 27, Jalan Astaka U8/84 Seksyen U8, Bukit Jelutong 40150 Shah Alam Selangor Malaysia
Tel.: +60 3 7843 3888
Fax: +60 3 7843 3800