The 5-in-1 stud finder is used to detect the center position of wood stalks, metal positions and live wires in walls made of wood and gypsum board, and has AC warning function. Applicable scenarios: The wall detector can detect metals, wooden and live cables hidden in walls, ceilings and floors (the walls, ceilings and floors are conventional concrete, ceramic tiles, planks, etc.) Precise positioning and intuitive display Comfortable to touch and easy to operate Applicable to a of scenarios. 5-level detection depth: Wood Studs detection I: Inch (12.7mm) Wood Studs detection II: 1 inch (25.4mm) Wood Studs detection III: 112 inches (38mm) Metal Detection: 2.36 inches (60mm) AC detection: 2 inches (51mm) Display: LED liquid crystal green backlit screen Power supply: A 6F22 type 9V battery(Not included) Product size: 171x70x35mm Colour:silver + black Material:ABS Package Contents: 1 x Stud Detector 1 x English manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.