SE 503

pH Sensor

The standard pH sensor for water / wastewater; robust and low-maintenance

Facts and Features

  • Low maintenance, no refilling or pressurizing of electrolyte
  • Integrated temperature detector
  • 2 ceramic junctions
  • Robust due to plastic body
  • Integrated probe guard
  • VP connector

Robust and insensitive to contamination, plastic body. Also for low-temperature applications. Low-cost, low-maintenance and reliable pH measurement.

Drinking water, surface water, industrial water, wastewater treatment, environmental analysis



Catalog Excerpts

Catalog Excerpt (en)

13255 |  pH-Sensor SE 503
Product Description | Specifications | Product Range
PDF (file size: 0.25 MB)


Brochure (en)

13396 |  Sensors - For measuring pH/ORP, conductivity or oxygen. Digital or analog.
PDF (file size: 2.22 MB)

Brochure (en)

13978 |  CaliMat - New pH Buffer Solutions
PDF (file size: 0.69 MB)


Manual (en)

12978 |  pH-Sensor 503N-NVPN
PDF (file size: 0.2 MB)

Certificates / Approvals

EU Declaration of Conformity (en)

14517 |  Analog Sensors, non Ex
Document No. EU191120A | 2019-11-20
PDF (file size: 0.2 MB)

Declaration of Compliance (en)

14156 |  Certificate of Compliance 2.1 according to EN 10204
PDF (file size: 0.02 MB)

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