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Electronic Water Sensor



Electronic Bulk Water Sensor to distinguish between diesel fuel and water. The SLUGGUARD® enables continuous detection of water in sumps of filter/water separators or in drain points of filter vessels. The high-precision switch is also suitable for compact filter housings.

A blue LED light indicates operating or alarm switching states.


  • Reliable medium detection
  • Fast and easy integration
  • Robust, durable and process-safe


  • Short immersion length for installation even in narrow pipe diameters

  • Long life stainless steel housing
  • Precise distinction between phases

Technical Data

  • Measurement: Radiated signal

  • Linear analog output signal: max. 20mA

  • Contact load: 12...30 V DC

  • Hazardous area approvals (ATEX): Ex ia IIC, ATEX II 1G, Ex ta IIIC T100 Da, ATEX II 1D, Ex NA II T5, ATEX II 3G

  • Protection class: IP 67, IP69K (with appropiate cable)

  • Operating temperature range: -40 °C to + 85 °C (-40 °F to 185 °F)

  • Storage temperature range: -40 °C to + 85 °C (-40° F to 185 °F)