A great gift for your family and friends Suitable for woodworking, water damage repair, construction, and home decoration. Detect moisture in carpets, floors, ceilings, walls, and below surfaces. Measure moisture content in wood and building materials before painting, wallpapering, sealing, or treatment. Four buttons: - / Button: Short press to change units. - MODE Button: Short press to select different modes for various materials. - Hold Data and Backlight Button: Brief press freezes the display reading; press and hold for more than 2 seconds to turn the backlight on or off. Manual calibration: Protective cap includes a calibration resistor for easy manual calibration. Replaceable test probes. Includes one pair of test probes. Measures both material moisture content and air temperature. Backlit LCD display: Clear LCD screen with backlight for easy viewing in low-light conditions.