General description This 3-in-1 multifunctional stud finder is designed to meet various detection needs, including locating metal pipes, live wires, and wooden studs. It features three different scanning modes for enhanced versatility and precise positioning, making it an essential tool for home improvement projects. Technical specifications Dimensions: 15.4 x 6.9 cm Detection depth for metal: up to 3 inches (76 mm) Detection depth for voltage: up to 3 inches (76 mm) Detection diameter for wood and metal studs: up to 1.5 inches (38 mm) Usage Scan Mode: Locates the edges of metal and wood studs up to 1.5 inches (38 mm) in normal walls Metal Scan Mode: Detects metals such as iron, copper, and aluminum pipes up to 3 inches (76 mm) AC Line Scan Mode: Identifies AC lines at a depth of 3 inches (76 mm) Ideal for hanging pictures or installing shelves while avoiding hidden hazards Other information Backlit LCD screen for easy reading Audio alerts and visual instructions for user convenience