Moisture sensor
Not in the shop – but in the product range

Being able to measure the moisture content in bulk materials during operation minimises tedious laboratory measurements and enables immediate dynamic control and regulation of the moisture content. For our customers this means increased efficiency in throughput times or downtimes, and an increase in the quality of the end product.

Liebherr’s sensors for moisture and water content measurement applications are characterised by the following features:

Do you have any questions?

Alexander Burgherr
Product manager
+41 44 944 14 34
produkte mess prozesstechnik feuchtsysteme 144

P78 / P30 moisture sensor

  • Capacity determination in high frequency stray field
  • Highly wear-resistant ceramic shield
  • Sensor replacement without recalibration
  • Temperature-compensated for working temperatures from -20…80°C
  • Stainless steel housing (1.4404)
produkte mess prozesstechnik Feuchtesensoren P71 HD Lebensmittel 1

P71-HD moisture sensor for food

  • Same proven properties as P78 / P30
  • Suitable for CIP/SIP use
  • EHEDG-certified / FDA-compliant
  • VARINLINE® housing type N Process connection
  • PEEK surface

P78E moisture sensor for ex zone 21/22

  • 78 mm version for dust explosion hazardous areas
  • Certified for zones 21 and 22
  • Ideal for reproducible moisture measurement in mixers, mills, dryers, conveyors etc.

P78-CCS sensor for highly precise coating thickness measurement

  • Coating thickness measurement from 5 µm to 50 mm
  • High resolution of 0.5 µm
  • Can also be used for surface weight determination
  • Insensitive to colour changes in the material

P80-CAN moisture sensor

  • Integrated CAN bus
  • Robust IP68 design also suitable for mobile applications
  • Used in construction vehicles, agriculture etc.

RMH-12 water content sensor

  • Water content or concentration determination also possible in very low ppm ranges (up to 10 ppm)
  • Possible applications: diesel and transmission, hydraulic, engine, transformer and turbine oil, as well as in battery systems

WMS II water content sensor for ex zone 0/20

  • Can be used for process pressures up to 100 bar
  • Installation in pipes and tanks
  • Modular design for different rod lengths and pressure sensor option
  • ATEX certified for dust and gas up to zone 0/20
  • Analogue output 4…20 mA and HART
  • Movable fitting as accessory for easy replacement of the sensor, e.g. in pipes and tanks during operation

Litronic-FMS evaluation unit for moisture measurement

  • Evaluation unit for P78/P30 moisture sensors
  • Small control unit with connection of up to 16 sensors
  • Includes the parameterisation software for the sensors
  • Up to 33 calibration curves (material curves) can be taught for different products
  • Communication options: RS232, Profibus, ProfiNet, 4-20 mA, DI / DO


Liebherr Datasheet WMS II rod sensor P45-GD

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Liebherr Datasheet planar sensor P30-S

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Liebherr Datasheet WMS II planar sensor P45-GD

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Liebherr Datasheet planar sensor P71-HD Food

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Liebherr Flyer Litronic FMS P80-CAN

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Liebherr Datasheet Litronic FMS planar sensor P78

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Liebherr Datasheet WMS II planar sensor P78-GD

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Liebherr Flyer Litronic WMS II water content measuring system

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Liebherr Flyer Litronic FMS-RMH

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Liebherr Flyer Litronic FMS moisture measurement system

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Liebherr Flyer Litronic CCS coating control system

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