Features ACCURATE AND SENSITIVE: The stud detector use the most sensitive intelligent microprocessor chip to accurately and quickly detect wood, pipes, metal and AC wires concealed in wall, floors and ceilings FOR THE CROWD: Whether you're a professional, homeowner or DIY enthusiast, stud finder will make your home overhaul easier 5 MODES: The Wall scanner has 5 scanning modes for locating the center and edges of wood, beams, joists, metal or deeply buried objects LCD DISPLAY WITH BACKLIGHT: The stud detector has an LCD display and audible warning, a signal bar on the LCD display will remind you of the distance and direction of the approaching object, and emit a beep to determine the position, this LCD display is MAIN USES: Stud detector can work on slats, wallpaper, wood floors, soundproof ceilings, spray painted wall, etc., avoiding hazards when you install TV, cabinets, garage racks, etc. Specification: Item Type: Stud Finder Material: ABS Battery: Alkaline 9V battery 6F22(not include) Use: Quickly locate wood, metal and AC wires concealed in the wall, floors and ceilings of houses. You can work on slats, wallpaper, wood floors, soundproof ceilings, spray painted walls, etc. Avoid hazards when you install TV, cabinets, garage racks, etc. Package List:1 x Stud Finder1 x User Manual Package List 1 x Stud Finder 1 x User Manual