Portable Digital Moisture MeterThis instrument is a smart needle-type contact wood moisture meter. It can measure the moisture content of 4 types of wood and other materials. This information can be used to determine if the material is ready for use, accidentally wet or dry, or requires further inspection. Precise Measurement ProbeFor wood, it has a wide range of 0% at 80% and a high accuracy of 2%. 0%~80% (wood), 0-11.0% (castles), 0%~8.6% (lime mortar), 0%-16.5% (brick). Backlit LCD displayBacklit LCD display, readings clear, convenient for use in dark environments; Auto-off time after about 10 minutes of inactivity. Easy to UseThis humidity tester is ergonomically sized, you can hold it with one hand to squeeze into a small space. Friendly Tips9.8mm probe, moisture meter with protective case; Due to manual measurement, the error range is very small. If you have any questions about the use of the product, please send us an e-mail. Number of pieces delivered: 1 without battery Battery type: 2 x 1.5V AAA