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Differential Pressure Switch 908

Introducing our Adjustable Differential Pressure Monitor – the ideal solution for precise monitoring of over-pressure, under-pressure, or differential pressure in both liquid and gaseous media, including aggressive substances. Our cutting-edge design features an easily accessible adjustment screw, empowering you to customise the switching pressure according to your unique requirements. With reliable and accurate measurements, our monitor ensures optimal performance in HVAC systems, industrial processes, liquid level measurement, and more. Safeguard your equipment and processes with this versatile monitor, built to excel in challenging environments. Trust in its efficiency, backed by our commitment to quality engineering.

Differential Pressure Switch 908 Product Parameters

  • Pressure Ranges: Available ranges are 40 to 200 mbar (908.32) and 150 to 1000 mbar (908.34).
  • Accuracy: Repeatability of the switching pressure is ±10%.
  • Electrical Connections: Options include tab terminal 6.3 mm x 0.8 mm and Connector DIN 46244.
  • Process Connections: Inner thread G 1/8 of Brass (CuZn40) for P1+ / P2– pressure connections.
  • Media Compatibility: Suitable for liquid and gaseous media, including aggressive types, with diaphragm materials like EPDM, NBR, Viton, and Silicone.
  • Special Features: Adjustable differential pressure switch with a temperature range of -10 to +80°C for both ambient and media. Offers a maximum operating pressure of 10 bar and a burst pressure of 20 bar. Protection class varies from IP00 to IP54/IP65 with the use of a protection cap. 

Product Highlights

The Differential Pressure Switch 908 is a robust and versatile instrument suitable for industrial applications. It operates in temperatures ranging from -10 to +80°C for both ambient surroundings and the media being measured. With a ±10% repeatability, it offers accurate switching pressure. The switch is made from high-quality materials such as EPDM, NBR, Viton, and Silicone for the diaphragm, and Chrome, Stainless Steel, Brass, or diaphragm material for media contacting parts. It can handle a maximum operating pressure of 10 bar and a burst pressure of 20 bar. The switch has a long mechanical life of over one million cycles. Depending on the model, it can handle electrical ratings up to 10 (2.0) A / 250 VAC or low power versions with max 30 mA / 24 VDC. The Differential Pressure Switch 908 is compliant with EU Low Voltage and RoHS Directives, ensuring safety and environmental friendliness.


  • Aggressive media
  • Heating water circuits
  • Liquids and gases
To download the latest datasheet click here: Differential Pressure Switch 908

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