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Digital moisture tester with thermometer

Velleman DEM801: Digital Moisture Meter with Thermometer

Velleman DEM801

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Compact Pin Moisture Analyzer and Temperature Meter

Measure moisture levels and temperature in building materials ranging from wood and drywall to concrete and mortar using the Velleman DEM801: Digital Moisture Meter with Thermometer. To use, simply place the electrode pins located on the top of the meter to the surface of the material to you want to measure. The moisture level and temperature are displayed on large LCD display.

This meter is ideal for construction workers, builing inspectors, carpenters and DIYers. The DEM801 readings help identify potential problems in building materials and structures due to moisture buildup.


  • Measures moisture level and temperature in wood, wall board, sheet rock, cardboard, drywall, plaster, concrete mortar and most other building materials
  • Large LCD display with backlight
  • 2 in 1 digital LCD readout with analog bar graph
  • Replaceable electrode pins
  • Meter measures and displays both moisture level and temperature readings simaltaneously
  • Includes data hold and auto power off functions


Electrode Pins 10 mm - Replaceable
Measuring Range
  • Moisture
    • Wood: 1% - 70% RH
    • Building Materials: 0.1% - 2.4% RH
  • Temperature: -4°F - 158°F (-20°C - 70°C)
  • Moisture
    • Wood: 0 - 30% : ± 1% , 30% - 60% : ± 2% , 60% - 70% : ± 4%
    • Other Materials: ± 0.5%
  • Temperature: -4°F - 158°F, ±2.7°F (-20°C - 70°C, ±1.5°F)
Auto Power Off After 30 seconds
Power Supply 9 V battery - Included
Working Temperature 32°F - 122°F (0°C - 50°C)
Operating Humidity 0% - 85% RH
Weight 3.46 oz
Dimensions 163 mm x 62 mm x 30 mm
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User manual
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 Warning: this product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to: www.P65Warnings.ca.gov/product