Description [Precise 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're sure to know the exact condition of your building materials, drywall, flooring, or more. [Includes Pins spare] Don't let a broken pin slow you down. Powered by one 9V battery (not included). [Easy-to-Read LCD Display] With its large LCD display, the Dr. Meter Wood Moisture Meter will keep you in the know with its easy-to-read display. Plus, this moisture tester is ergonomically sized so you can hold it in one hand to squeeze through small spaces. [Detect waterlogged wood] If you buy wood, you must ensure that the materials are in good condition. Protect yourself by using this wood moisture meter to detect possibly waterlogged wood. [Variety of Uses] Whether you're checking the status of a construction site or considering buying new lumber, don't be surprised. Use this tester to locate moisture in carpets, subfloor woodworking, in the construction and agricultural industries, as well as to assess damage after flooding.