[Accurate measurement, wide range] Get an accurate reading every time. With a measuring range of 5% to 40% and an accuracy of less than 1%, you are sure to know the exact condition of your building materials, drywall, flooring or more. [Includes replacement pins] Don't let a broken pin slow you down. Always have a reliable, working measurement with the 2 spare built-in sensor pins we've included for your convenience. Powered by a 9V battery (not included). [Easy-to-read LCD screen] Thanks to its large LCD screen, the Dr. wood moisture meter. Meter will keep you informed with its easy-to-read display. Additionally, this moisture tester has an ergonomic size allowing you to hold it in one hand to squeeze into small spaces. [Detect waterlogged wood] If you are purchasing wood, you need to make sure the materials are in good condition. Protect yourself by using this wood moisture meter to detect possibly waterlogged wood. [Variety of uses] Whether you are checking the status of a construction site or considering purchasing a new lumber, don't be surprised. Use this tester to locate moisture in carpet, underfloor woodworking, in the construction and agricultural industries, as well as to assess damage after flooding.