Wood Moisture Meter: Insert a stainless steel pin into the surface of the object to be measured to get an accurate reading with ±0.5% measurement accuracy. Detecting hidden problems: Use a pin-type moisture meter to ensure that the wood is burnable and to detect leaks in the wood. Easy to operate: The damp meter is equipped with a backlit LCD display for clear and readable measurements, and the HOLD button freezes the readings. Features and Benefits:Rugged and durable design for use in a variety of scenarios such as wood, paper, flooring, building materials, etc.Automatic shutdown after 5 minutes of no operation. Tips One:For best results of wood moisture content, Push the Pins deep into the material, Make sure Pins are in contact with the material( wall, wood or hardwood),try not to shake, Manufacturer: SHENZHEN REDDRAGON INSTRUMENTS CO.,LTD