【3 Modes of Detection and Hygrometer Alarm Function】 Wood moisture 6% -60%, building material moisture 1.5% -33%, temperature range 0 ~ 50 ℃ (32 ~ 122 ℉), in addition, when the wood stalls: % 16%; Building material : : 20%, the buzzer function of the hygrometer will trigger an alarm. 【Portable LCD Digital Moisture Meter with 8 Calibrations】 The moisture meter can detect 8 types of wood of different density, 8 measurement scales (A , B, C, D, E, F, G, H) can be switched according to different woods. 【Accurate and Fast Measurement】 The wood moisture meter accurately and quickly measures the amount of water in wood, building materials and also measures the temperature of the environment, to help ensure that the deck wood is dry enough to accept stain. Suitable for wood / paper industries / building materials. 【Auto Shutdown Low Battery Reminder Data Hold】 If you don't use for three minutes, the device will automatically turn off, Low battery reminder function: less than 2.2V, the screen will show "" icon, indicating that the battery is low, you can freeze the displayed data using the Hold button. p 【Precise Moisture Detection Technology】 The moisture meter adopts precise moisture detection technology and is designed with 2 high-precision pins, which can quickly detect moisture hidden in the surface of wood, walls and masonry. , with LED display function. Specification 8 calibration scales (A, B, C, D, E, F, G, H), based on different types of wood materials. Display: LCD display. Hold measurement data function. Low battery indication ( lt; 2.2 V). Automatic power off in 3 minutes without operation. Hygrometer buzzer function: (wood gear: less than 16%; construction material gear: more than 20% - new function) Power supply: 2 LR03 AAA 1.5V batteries. (Battery not included) Material: PC / ABS Meter housing: ABS plastic Color: gray, weight: 89 g Package included: 1 X Moisture meter, 1 English user manual (battery not included) Measuring range: Wood moisture: 6% to 60% Moisture of construction materials: 1.5% to 33% Ambient temperature: 0 to 50 ° C (32 to 122 ° F) Resolution: Wood and building materials: 0.1% Temperature: 0.1 ° C (0.1 ° F) Accuracy: Wood and building materials: ± 2% Temperature: ± 2 ° C (± 4 ° F) Operating environment: Temperature: 0 - 40 ° C Relative humidity lt; 85% Note: it does not include other things, the color is based on the first picture, and other pictures only show the effect Due to the differences between different monitors, the picture may not reflect the actual color of the item. Due to manual measurement. Please allow deviation. Thank you!