Features: Non-invasive measurement to monitor moisture in wood and other building materials Select from 10 wood types and measurement ranges Measurement depth to 0.75" (20mm) below the surface LCD displays % moisture of wood or material being tested Specifications: Sensor Type: Non-Penetrating Range: 0 to 99% (limited by wood type) Max Resolution: 0.1% Dimensions: 5.4x2.8x1.1" (136x70x28mm) The MO280 provides Non-invasive moisture measurements in wood and other building materials with virtually no surface damage. Meter uses electro-magnetic technology to quickly indicate the moisture content of wood and building materials. Select from 10 wood types and measurement ranges. The LCD displays % moisture of wood or material being tested. It has a measurement depth to 0.75 in. (22mm) below the surface. The meter also features an automatic internal test and calibration and low battery indication. Complete with 9V battery and pouch case.