The Extech MO280 provides non-invasive moisture measurements in wood and other building materials with virtually no surface damage. With a measurement depth to 22 mm (0.75 in) below the surface, the MO280 uses electro-magnetic technology to quickly indicate the moisture content in building materials. Select from 10 wood types and measurement ranges. The LCD displays percentage of moisture in the wood or other material being tested. The MO280 also features an automatic internal test and calibration and low battery indication. Complete with 9V battery and pouch case.