8 kinds of materials: this moisture meter can be used to measure different woods (0-88%), as well as other materials such as cement mortar (0%-8.6%), lime mortar (0%-16.5%) and Karstenite (0-11%). Multi-Function: Digital moisture meter with backlight and HD LCD display to show readings clearly. Data retention when pressing the "Hold" button, maximum/minimum value lock, low battery power icon display and auto/manual power off Double protection: wooden humidity detector with pin shell and silicone outer case, which can protect the probe from dust and damage as well as protect your hands from hurting. Perfect professional humidity detector for woodworking, building construction, floor and attic slow leak detection, as well as wood floors, cabinets, plywood, paneling, cement mortar, etc.