Any questions?

We are happy to provide further information available.

Business: +49 2452 962 400
Industry: +49 2452 962 777
End-consumers: +49 2452 962 450
  1. Products & Services
  2. Measuring devices
  3. Humidity
  4. Humidity measuring devices
  5. BM18 Moisture measuring device

BM18 Moisture measuring device

Reliable measurements of wood and building moisture at the touch of a button

It takes only one button to switch the BM18 on and effect all settings. For the measuring modes (wood moisture, building moisture) and temperature (°C, °F) selection, press and hold the button for roughly 3 seconds.

In case of temperature measurements, the device indicates the current ambient temperature. In case of moisture measurements, simply push the insertion measuring pins a few millimetres into the material to be measured. This way, you obtain precise and quick results. When measuring in dark surroundings, one touch of the button activates the background illumination. It goes out again automatically after 3 seconds.

When not in use, the device switches off automatically after 30 seconds to ensure a long battery life. An insufficient battery voltage is indicated on the clearly legible display in good time.

The memory of the BM18, too, includes a calibration curve for the moisture measurement of wood types common in Europe. No further settings are required for the determination of the wood moisture content.

A few practical benefits:

  • Wood and material moisture measurement with one device
  • With protection cover
  • Simple handling via one button
  • Excellent value for money
  • Ready for immediate use
  • Display of ambient temperature either in °C or in °F
  • Calibration curve for standard types of wood
  • LED humidity indicator incl.
  • Easily changeable steel insertion measuring pins
  • Direct display of measured values in %
  • Mode selection key
  • Battery status indication
  • Automatic switch-off


BM18 Moisture Meter show in Trotec online shop

BM18 Moisture Meter

In addition to the building and wood moisture content, the moisture meter BM18 also determines the ambient temperature, which can be read in either ° C or ° F. On the backlit display each measured value can be easily read even in the dark.

You save: 39 %

20.42 £ 12.34 £ incl. VAT Show net price (VAT not included)


Technical data

Technical data
General information
  Article number 3.510.205.023
Wood moisture [%]
  Min. measuring range | Wood moisture [%] 6
  Max. measuring range | Wood moisture [%] 60
  Resolution | Wood moisture [%] 1
  Approx. accuracy ± | Wood moisture [%] 1
  Min. temperature compensation [%]
  Max. temperature compensation [%]
  Measuring principle resistance measuring method
Material moisture [%]
  Min. measuring range | Material moisture [%] 0.2
  Max. measuring range | Material moisture [%] 2.9
  Accuracy | Material moisture [%]
  Resolution | Material moisture [%] 0.1
  Measuring principle resistance measuring method
Material moisture [digits]
  Min. measuring range | Material moisture [Digit]
  Max. measuring range | Material moisture [Digit]
  Resolution [Digit]
  Measuring principle
  Min. penetration depth (non-destructive) [mm]
  Max. penetration depth (non-destructive) [mm]
Device control
  Push buttons
Housing design
  Electrode length [mm] 8
Power supply
  Internal (battery) 1 x 9 V battery
Ambient conditions
  Operation - min. temperature [°C] 0
  Operation - max. temperature [°C] 40
  Operation – min. relative humidity [% RH] 0
  Operation - max. relative humidity [% RH] 85
  Length (packaging excluded) [mm] 122
  Width (packaging excluded) [mm] 45
  Height (packaging excluded) [mm] 51
  (packaging excluded) [kg] 0.115
Standard scope of delivery
Standard scope of delivery
  Measuring device
  Protective cap
  Electrode tips (2.2 x 8 mm)
  Operating manual
  Electrode tips (1.5 x 20 mm)
  2 x union nuts
  Wood type directory
  Factory test certificate
Ascertainable measured values and functions
Internal sensors
  Material moisture [%]
  Wood moisture [%]
  Ambient temperature [°C]
  Material moisture [digits]
Functions and features
  LED moisture indicator
  Material selection
  Measured value hold function
  Switching function °C/°F
  Automatic switch-off
  Backlit display
  Battery status indication
  Maximum value display
  Minimum value display
  Acoustic alarm function
  Selection sensor characteristic map (sens)
  Unit 2
  Selection of wood material characteristics (Mat)
  Temperature compensation
  Manual temperature setting
  Automatic functional test
  Automatic battery test
  Non-destructive measurement method
  Mode selection slide control
  Retaining clip

 standard equipment

 optionally available

 not available



Alternative products