ACCURATE AND QUICK MEASUREMENT - The wood moisture meter uses 2 high-precision and sensitive metal needles to accurately test at different depths by penetrating the surface of wood, cardboard, etc. to get the humidity level. This moisture tester helps find hidden leaks. It's the perfect tool for homeowners, carpenters, flooring and inspectors. 4 MEASUREMENT MODES - This moisture meter has 4 calibrated scales to measure a variety of woods, performing accurate moisture measurements on 50 wood species. The protective cover prevents damage to the detector. WIDE MEASUREMENT RANGE AND LOW-MED-HIGH INDEX - the wood moisture meter offers a wide measurement range (wood: 0% - 99, 9%) with 0.1% resolution, Accuracy: 0.5% LCD DISPLAY - The digital moisture analyzer features a large, bright LCD display for easy reading. A short press of the HOLD button keeps the measurement on the screen. Built-in battery check and low battery icon display, the hygrometer will automatically shut off after 15 minutes of inactivity, saving battery power. SHOCKPROOF SHELL - both sides of the meter are covered with an ergonomic, non-slip material for a comfortable and secure grip. Compact size and light weight make it easy to carry. Package Contents: This leak test kit includes a digital hygrometer. Specification: Measurement Principle: Electrical Resistance Range: 0 ~ 99.9% wood Resolution: 0.1% Accuracy: 0.5% Length electrode height: 10 mm (0.4") Electrode pins: integrated Auto power off: after approximately 15 minutes Power supply: 1 x 9V battery (not included) Meter case material: ABS plastic Operating temperature: 0~40 ( 32F~104F) Operating humidity: 85% maximum relative humidity Dimensions: 145 x 67 x 32 mm Colour: Black Quantity delivered: 1 piece Good quality product