MT20 has been designed to measure the timber moisture; the indication given represents the average percentage of water referred to the dry weight of the material.

The measurement is based on the dielectric constant of the object under examination, which is characteristic of each material and which is influenced by the presence of water molecules.


This type of measurement allows a rapid assessment of the moisture content of the material without damaging it.

MT20 can measure humidity on the surface (8-15mm) or deeper (15-25mm).


Technical specifications

  • Wood moisture measurement range: 2-99,9%
    (<4 / >30% indicative only) 0,1% resolution

  • Measuring depth: Depth sensor: 15-25 mm Surface sensor: 8-15 mm

  • Minimum timber dimensions: 100x50x8mm

  • Wood species groups: 12 (150-1250 kg/m3)

  • Over 400 wood species included

  • Temperature measuring range:
    -10/+50°C (res.0,1°C) – internal sensor
    -40/+125°C (res.0,1°C) – optional sensor

  • Air moisture measuring range: 0-99.9%
    (res.0,1°C) – optional sensor 0-30% EMC

  • Hold function: 99 measures storage, downloadable to PC as read only .csv file (USB cable type 2 to Mini-b required – not included in the supply)

  • Settable alarms: Min / Max moisture value

  • Auto power off: Settable 1-10min

  • Working temperature: -10/+50°C

  • Working humidity: <90% - without condensation

  • Power supply: 3 x AAA size (LR03) alkaline batteries

  • Consumption: ON: 70mW – StandBy: 3.6uW

  • Protection degree: IP40

  • Dimensions: 119x65x27mm

  • Weight: 145gr

  • Optional: RH/EMC/T sensor ordering code C002836



  • Sturdy genuine leather case with belt attachment

  • Alkaline batteries

  • User manual

Find out more

Software, Manuals, etc.