【3 in 1 Multifunctional Stud Finder】- This stud finder includes 3 different scanning modes to provide users with more detection needs. Detects metal up to 3 inches (76 mm) deep. Detects voltage up to 3 inches (76 mm) deep. Detects wood and metal studs up to 1.5 inches (38 mm) in diameter. 【3 Detection Modes】 Scan Scan Mode: Locates the edges of metal and wood studs up to 1.5 inches (38 mm) in normal walls Metal Scan Mode: Locates metals such as iron, copper, aluminum pipes, etc. up to 3 inches (76 mm) AC Line Scan Mode: Position the AC line at 76 mm (3 inches) 【Precise Positioning】-This 3-in-1 stud finder, metal detector and AC live detector is perfect for decorating your home. When you want to dig holes to hang pictures or install shelves, etc., you can avoid unnecessary losses with the precise positioning of hidden metal pipes, live wires, studs and wooden frames. 【Easy to Use】 The LCD screen is backlit for easy reading. Automatically calibrate metal detection, voltage and studs.