100% Non-destructive Measurement: No need to insert electrodes or probes into the material to be measured, the high-frequency waves emitted by the sensor of DURFICST moisture meter can penetrate about 40 mm into masonry, and the humidity measurement will never damage the surface of the object. Automatic Calibration & High-precision Measurement: Press the MEAS button after the DURFICST wood moisture meter is turned on, and it only needs to wait for 3 seconds to complete the automatic calibration and start the measurement. 3-inch HD Color Screen: The moisture meter is equipped with a 3-inch HD color screen with three color analog bars. Wide Range of Uses: Suitable for testing the moisture content of wood and building materials such as wallboard, slate, tiles, cardboard, plaster, concrete and mortar, as well as for repairing water leaks, checking the moisture content of bedroom walls, floor tiles or caravans, etc.