Wood Chip Moisture Tester lets you choose from four different scales, depending on the size and coarseness of the logging residue. Moisture content is displayed in weight percent with a resolution of 0.1% and the unit automatically calculates the average of several measurements. Moisture ranges from 12–40% for wood chips and 30–70% for logging residue, brash or slash. Measurement zone is 7-1/2"-dia. Developed with the help of several governmental departments from around the world. Requires one 9V alkaline battery (not included). Features a low-battery warning. Includes a hard carrying case. USA made.