2 Pins Type Wooden Moisture Meter 3 In 1 Wall Moisture Humidity Tester With LCD Display For Building Material Firewood Cardboard Bullet Points: 1Humidity Sensor:Multifunctional Moisture Detector can test the moisture content of wooden materials, walls, cement bricks, cardboard, etc. Quickly determine whether it is wet or dry, and take preventive remedial measures. 2Simple Measuring:Equipped with 2 high-precision pins. You just need to penetrate into the materials that need to be tested. And then the Wooden Moisture Meter can quickly give you the moisture level in building materials. 3Detailed Designs:The Multifunctional Moisture Tester has a non-slip handle, which is convenient to carry. The large backlit LED screen is easy to read. If the button is not operated within 5 minutes, the meter will automatically cut off to save battery power. 4Wide Range:The Moisture Detector is specially designed for the measurement of wooden materials, construction, and paper and the current ambient temperature. It is suitable for carpentry, building construction, agricultural repair, and floor laying, and other ocns. 5Neceary Reminder:Please stay away from this sharp tester to avoid injury to children. When not in use, please close the protective cover tightly. Please ensure that the instrument is used and stored in an insulated, dry, and dust-free area. Clean properly on time. Measurement instructions: 1. Remove the battery cover, install 2 AAA dry batteries, and pre the power button once to turn on the machine. This product has a blue backlight after it is turned on, which can be clearly displayed when the light is insufficient. 2. Remove the electrode needle cap to expose the electrode needle. 3. Pre the "Wood" button to select the appropriate wood calibration scale A, B, C, D (please refer to the wood calibration table at the back of this guide) to measure the corresponding wood. 4. Pre the "Paper" or "Wall" key to select paper mode or wall mode. Paper mode is used to test paper/cardboard/carton. Wall mode is used to test thin slate/wall board/floor. 5. Insert the needle into the material and read the currently displayed data. Pre and hold the HOLD/C/F key once to lock the display reading. 6. Read the current ambient temperature. Pre and hold the HOLD/C/F key for 3 seconds to switch between Celsius and Fahrenheit. 7. Pre the power button once to turn off the power of the instrument. Specifications: Principle:Resistive Wood range:4~75% Paper range:4~90% Wall range:0.2~24% Resolution:0.1% Accuracy:0.5% Electrode length:10mm (0.4") Electrode needle:integrated Automatic shutdown:after the button is not operated for 5 minutes Power supply:2 AAA batteries Product material:ABS Operating temperature:0 to 40 degrees Celsius (32 to 104 degrees Fahrenheit) Product size:144 X 64 X 31mm (5.7" x 2.5" x 1.2") Product weight:130g List: 1*Moisture meter (without battery) 1*Instruction