Features 1. 100% non-destructive measurement: The high-frequency waves emitted by the wall humidity measuring instrument can penetrate bricks and stones by about 40 millimeters, and humidity measurement will never damage the surface of the object. By using a spherical probe, users can easily measure small areas without leaving any traces, and can also easily measure humidity around corners, uneven surfaces, and baseboards. 2. Automatic calibration and high-precision measurement: After turning on the wood moisture meter, press the "MEAS" button and wait for only 3 seconds to complete the automatic calibration and start the measurement. This moisture meter adopts high-precision alloy probes and high-performance processing chips, with accurate measurement and fast response. The measurement range can reach 0.0-100.0, and the resolution is 0.1%. 3-inch high-definition color screen: The wall moisture meter is equipped with a 3-inch high-definition color screen, with three color analog bars displaying "dry", "dangerous", and "humid" states in "green", "yellow", and "red", respectively. It is beautiful and intuitive, and is also very easy to read in low light conditions. 4. Wide application range: Suitable for checking the moisture content of wood and building materials, such as wall panels, slate, tiles, cardboard, gypsum, concrete and mortar, as well as repairing water leaks, checking the moisture content of bedroom walls, floor tiles or RV. A humidity meter can help you quickly detect mold and protect the building structure of your house or apartment. 5. Comfortable and convenient to carry: The side of the humidity measuring instrument is embedded with soft rubber, providing a comfortable touch. There is a cloth bag inside the packaging, which is more convenient to carry and store. Please note: When measuring, please hold the lower part of the hygrometer as much as possible, otherwise wet hands may affect the measurement results! Please note: When measuring, please hold the lower part of the measuring instrument as much as possible, otherwise it may affect the measurement results. Unable to measure metal to save battery power, the humidity analyzer automatically shuts down within 30 minutes after startup. Press and hold the "MEAS" button when shutting down to cancel this function. Specifications Color: Black Product size: 3-inch high-definition color screen Material: Alloy+Soft Rubber Resolution: 0.1 Measurement depth: 20-40 millimeters Package Include: 1 * Humidity measuring instrument 1 * Bag 1 * Screwdriver 1 * English manual