Ideal for contractors; woodworkers and homeowners to measure the moisture content of wood and other construction materials Features: Two measurement modes: Pin and pinless Pin mode uses replaceable pins at end of 46 inch cable Pinless mode uses integral ball sensor with up to 4 inch measurements depth Displays % WME or relative readings simultaneously on two displays: 0 to 99.9 count jumbo LCD and 40-dot-tri-colour LED Bar graph Spare pins storage compartment Auto-calibrating Data hold function Low battery warning User can set beeper sound; auto power off time and backlight function Superior to flat bottom sensors by enabling the user to measure in corners; hard-to-reach areas and narrow spaces Small contact area for improved repeatability Spherical sensor works on uneven surfaces and corners Works at any angle Can accommodate wide viewing angle Keeps hand away from sensing area; reducing interference Specifications: Measurement Range: 0 to 99.9% WME (Wood Moisture Equivalent) or REL Operating Temperature: 0 to 50 degree C Dimensions: 229 x 70 x 41mm Weight: 249g Power Source: 1 x 9V battery (included)