High Accuracy MeasurementPerfect for wood, lumber, lumber, logs, cardboard, paper, concrete, and many types of walls. Thanks to sensitive electrode tips in the range of 0-80% and the accuracy is less than 2%. 4 Modes: You can switch the different modes according to 4 wood groups, including about 50 wood species, which makes the measurement more accurate. Used Futions: Large LCD display with value hold function to display measurement results; Automatic shutdown for less battery expenditure (battery included). Convenient Design: Made of ABS plastic for superior durability, sliding feel on both sides. Compact size and lightweight. Comes with a protective cover. Wide Measuring Range: You can also test the building material, different building materials with different measurement ranges, such as plaster wall, anhydrite wall, cement plaster, limestone mortar, brick. Features: Material: plastic. Operating temperature: 0 to 40C. Storage temperature: -10 to 50C. Measurement accuracy: 0.1%. Electrical conductivity measurement: 2%. Level of protection: IP20. Measurement range: 0-80% RH. Power Source: 1 x 9V 6F22 battery, auto shut-off. Product Dimensions: 137.5 x 52.5 x 31 mm. Contents: 1 wooden humidity gauge. The color red Quantity delivered: 1 piece