Features ACCURATE DETECTION: Stud detector uses the sensitive smart microprocessor chip to accurately and quickly detect wood, pipes, metal and AC wires concealed in walls, floors and ceilings. FOR VARIOUS PEOPLE: 5 in 1 detector make your home overhaul easier, whether you're a professional, homeowner or DIY lover. LOCATE CENTER AND EDGE: Wall scanner with 5 scan modes for locating the center and edge of wood, beams, joists, metal or deeply buried objects. BACKLIT LCD DISPLAY: The stud finder has an LCD display and audible warnings. A signal bar on the LCD display alerts you to the distance and direction of approaching objects and beeps to determine the location. This LCD display is also backlit, providing AVOID DANGERS IN INSTALL: Can work on slats, wallpaper, wood floors, acoustic ceilings, painted walls and more. Avoid your dangers when installing TVs, cabinets, garage racks, etc. Specification: Item Type: Stud Finder Material: ABS Battery: 1 x 6F229V battery, shipped without battery. Use: Quickly locate wood, metal, and AC wires in house wall, floors, and ceilings. It can work on batten, wallpaper, wood floor, acoustic ceiling, spray painted wall and other places. Avoid danger when installing televisions, cabinets, garage racks, etc.  Package List:1 x Stud Finder 1 x User Manual Package List 1 x Stud Finder 1 x User Manual