Digital LCD display is easy to read Measuring range: 5%~40%, accuracy: 1% Date hold function for saved values Low power indication and optional input 4-pin hygrometer for wood, trees, bamboo, etc. Specification: Test range 5% - 40% Digital Large Size LCD Display Accuracy: +/-1% Data is kept in memory for easy reading Powered by 9V battery with low battery indicator 4-pin sensor Ability to change sensor pins according to application Small size for easy handling and portability introduce 1 Remove the probe cover, press the power button to turn on the probe 2 Insert the probe into the tested object for about 5mm during the test, the display will show the moisture content of the tested object, 3 If you need to keep the current value, you can press the hold key "H", 4 After the measurement is completed, press the power button to shut down and cover the probe cap. Instrument maintenance 1 This instrument is high-impedance and safe insulation. To ensure its accuracy, please keep it dry and clean during storage and use. 2 When the LCD screen shows the low voltage symbol, replace the battery. When not in use for a long time, the battery needs to be taken out to prevent the leakage of liquid from damaging the instrument. Power supply: 6F22 type 9V battery Product size: 129x63x32mm