Features： 1、Probe: Equipped with probe, the moisture meter is designed for measuring the moisture content of most wood, bamboo, paper, cardboard, walls according to different preferences to meet personalized needs. 2、4 Wood Groups: Under the wood mode, the wood moisture detector has 4 measured wood groups (with approximately 50 species of woods) for you to select, enabling you to take accurate moisture measurements in the variety kinds of woods. 3 in 1 Modes: With 3 modes, that is wood mode, paper mode, wall mode, the humidity measuring instrument can measure different items based on different conditions. 4、Data Hold: You can lock the measured data for conveniently checking and recording the moisture, the function is very practical and convenient. 5、Automatic Shutdown: When you have no operation on button within 5 minutes, the digital moisture detector will automatic turn off, saving energy and prolonging the service life. Specification： Item Type: Moisture Meter Material: ABS Weight: 140g/4.94oz Color: As Shown Size: Approx. 144x64x31mm/5.67x2.52x1.22in Display Screen: Backlit Green Principle: Resistance Type Wood Range: 4~75% Paper Range: 4~90% Wall Range: 0.2~24% Resolution: 0.1% Accuracy: ±0.5% Length of Electrode: 10mm (0.4in) Automatic Shutdown: No Operation within 5 Minutes Power Supply: 1.5V AAA Battery (Shipped Without Batteries) Operating Temperature: 0 to 40 Degrees Celsius (32 to 104 Degrees Fahrenheit) Temperature Range: -20 to 70 Degrees Celsius Package List： 1 x Moisture Meter 1 x Use Manual