HW-QB6 5 In 1 Wall Scanner Handheld Stud Finder Wood Current Metal Live Wires Detection 1. Multiple detection modes including 12" stud scan for wood or metal studs up to 13mm deep, 1" stud scan up to 25mm deep, 1 12" stud scan up to 38mm deep. It also features a metal mode for detecting metal up to 80mm or 60mm deep and an AC mode for detecting live unshielded AC wires up to 51mm deep. 2. Usage: Quickly locate wood, metal, and AC wires hidden in walls, floors, and ceilings of your home. It works on laths, wallpaper, wood floors, soundproof ceilings, painted walls, and more. Saves you from danger when installing TVs, cabinets, garage racks, and more. 3. High-definition backlit display, easy to display data in a dark environment 4. The product is small, easy to carry and easy to use 5. Accurate positioning, fast search, improved work efficiency, in-depth exploration of safety and stability 6. Screen: green backlit screen 7. Power supply: 9V 6F22 battery (not included) 8. Product size: 17.7 x 7 x 3cm 9. Weight: 150g