CMT DMM-001 Digital Moisture Meter Generals ultra-sensitive Digital Moisture Meter easily detects hidden leaks in wood, concrete, plaster and carpet Great for new home inspections, locating roof leaks or even selecting dry lumber at the yard Measuring range in wood: 5~50%Measuring range in building material: .5~33% Measuring accuracy: 2% Measuring curacy: 2%Backlight hut Dimensions: 145mmx62mmx27mm (5-11/16"x2-7/16"x1-1/16") Weight About 86g (3oz) (without battery) Display will show the moisture content in Percent Moisture Content directly