100% Non-Destructive Measurement- The DURFICST moisture meter with probe is 100% non-destructive compared to previous pin-type water leak detectors. Quick and Easy to Use- With the pinless moisture meter, it only takes a few seconds to get an accurate moisture reading. Simply press 'MEAS' after power on and the instrument will automatically calibrate. Accurate Measurement - The wood moisture meter uses a high precision alloy probe and high performance processing chip for accurate and responsive measurements with a range of 0.0-100.0 and a resolution of 0.1%. Wide Range of Uses- The DURFICST digital moisture meter is 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 leaks, checking the moisture content of bedroom walls, floor tiles or caravans, etc. Note: It does not measure metal.