Take pinless, non invasive moisture measurements on wood and building materials without damaging the surface with Extech’s MO57 Moisture Meter. The ball moisture sensor provides smooth gliding on hard or delicate surfaces. It is easy to operate with display icons that indicate the levels of moisture content plus an audible alert feature. The MO57 can be ideal forrestoration projects and applications where moisture detection on floors, tiles, and under carpets is critical. A must-have tool for analyzing the after effects of water leakage in walls, ceilings, and also on non flat surfaces.