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Geo Fennel FHM 20 Moisture Meter


$176.60 inc GST

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FHM 20 Moisture Meter for wood and building materials. Measurement of humidity permeation, surface humidity, determination of dry and humid areas.

  • Wood: Calibrated to 170 wood types in 8 groups.
  • Building materials: Gypsum, plaster, concrete, concrete screeds, mortar, cardboard, paper.


  • External moisture measurement probe
  • External temperature probe: at measurement with moisture and temperature probe the moisture measurement is carried out with automatic temperature compensation. This leads to a higher accuracy
  • 8 mm measuring pins (replaceable
  • Protective cap with integrated calibration check
  • Battery indicator
  • Automatic power-off (adjustable time) 
Measuring princible Electrical resistance
Measuring range wood 6 – 99,9 %
Accuracy wood ± 1 %*
Measuring range building materials 3 – 33 %
Accuracy building materials ± 1 %
Range temperature measurement 0 °C – +60 °C
Dimensions 180 x 50 x 31 mm
Weight 175 g

Supplied with

Moisture and temperature probe
Padded bag
2 x spare measuring pins
2 x AAA Batteries



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