RADAR TECHNOLOGY: The stud finder uses Bosch-patented radar technology to detect all object types, including live and non-live cables, water-filled plastic pipes, and magnetic and non-magnetic metal SPOT VIEW: Delivers immediate results even when there is little or no space to move the wire detector to scan the wall 3 DETECTION SETTINGS: Choose from one of 3 detection settings depending on wall type—Drywall, Concrete, or Universal mode if the material is unknown DUAL POWER SOURCE: For added flexibility, the endoscope can be used with either a 12 V Li-ion battery or standard AA batteries using the battery adapter ITEMS INCLUDED: Wall Scanner D-tect 120, 4x AA batteries, battery adapter and protective bag