Specifications: Technical parameters: Resolution: 0.5% Maximum error: ± 2% Operating environment: temperature: 0 & 8451;~40 & 8451;, humidity: 10~75% RH Storage environment: temperature: - 10 & 8451;~50 & 8451;, humidity: 10~90% RH Detection depth: 25mm Measuring range of wall moisture content: 0~40% Measuring range of wood moisture content: 2~80% Weight: 95 g (without battery) Size: 132 × sixty-seven × 26mm Power supply: 3 × 1.5V AAA battery Characteristic description: *Adopt high-frequency electromagnetic wave induction measurement *Level 10 wall density adjustable *Grade 10 wood density adjustable *Automatic temperature compensation function *Water content upper limit setting and over-limit prompt function *Large LCD display ensures clear reading *Low voltage automatic prompt function instructions: After the instrument is turned on, make its bottom fully contact with the object to be measured (the surface of the object to be measured should be flat, and the area should be larger than the instrument The bottom sensor part), slightly press the force to make the sensor fully contact with the measured object. Display on the display Shown as "SCAN", (the initial default value of the instrument is "5" for the wall density and "3" for the wood density, and it is marked with Memory function), the displayed value is the water content of the current measured object.