This product is a DC resistance type (pin type) material moisture meter, commonly used to measure the moisture content of wood or building materials. The moisture content of the material is displayed directly as a percentage.? Features: 1. Large LCD with Backlight: Large LCD display with backlight, clear to read, even under the dim light.? 2. Practical Functions: It supports single point measurement, multi-point average measurement, maximum and minimum measurement, data hold and low battery indicator. 3. 7 Different Kinds of Materials: The instrument has built-in characteristic parameters of 7 different kinds of wood and building materials. This measurement can provide a basis for the need for further drying. 4. Ambient Humidity and Temperature: In addition to measuring the moisture content of the material, the ambient humidity and temperature can also be measured so that the dry environment can be evaluated directly on site. 5. Auto Shut Down: Without any operation, the meter will automatically shut down after about 10 minutes to save battery energy. ?( It can be cancelled when the user starts up. ) Note: 1.?Operate the product correctly within the parameters specified in the technical data sheet according to the purpose of the product. 2. Due to manual measurement, the size may be slightly different. Thank you for your understanding. 3. Due to different light conditions and different monitors, item color displayed in photos may be showing slightly different from real object. Specifications: Brand: HABOTEST Model: HT633 Display: LCD Color: Black & Red Shell Material: ABS Sensor: Resistance type (conductivity measurement), high precision temperature and humidity sensor Material Humidity Range: 0.0~57.0%, +/-2.0% Ambient Temperature: -20.0~60.0 celsius (-4.0~140Fahrenheit), +/-1.5 celsius Ambient Humidity: 0.0~99.9%, +/-5.0%RH Use Environment: -10~50degrees C / 20~90%RH Storage Environment: -10~60degrees C / 20~90%RH Power: 3 x 1.5V AAA Alkaline battery ( not included ) Material Type Selection: Built in characteristic curves of 7 materials Data Hold: YES MAX / MIN Hold: YES Auto Power Off: YES Low Battery Indication: YES Backlight Function: Red backlight: ?High moisture content, showing the letter W Orange backlight: Moderate moisture content, showing the letter M Green backlight: Low moisture content, showing the letter D Item Size: 14.2*5.8*2.6cm / 5.59*2.28*1.02in? Net Weight: 115g / 4.06oz Packing Size: 18.5*9*5.5cm / 7.28*3.54*2.17in? Packing Weight: 207g / 7.30oz Package List: 1 * Wood Moisture Meter 1 * Cloth Bag 1 * Wrench 2 * Spare Measurement Pins 1 * Manual ( English )