The Extech MO265 is a Combination Pin/Pinless Moisture Meter which measures Relative Moisture in wood and other building materials using pinless technology plus % of Moisture in sheetrock and other materials using direct pin method. Measurements are displayed on a digital LCD with backlighting and a tri-color LED bargraph. Pinless non-invasive measurement depth to 0.75 in. (22mm) below the surface. In addition, a remote pin probe is included to measure moisture in difficult to access places.