Features: Stud Finder Wall Scanner includes four different scanning modes, namely Stud Scan, Depth Mode, Metal Scan, and AC Scan. Used to find and locate the center and edges of wood studs up to 19 mm (3/4 inch) deep; Depth Mode is used to locate up to 38 mm (1.5 inches) deep; Metal Scan is used to detect metal (e.g. 1/2 inch rebar) up to 60 mm (2.36 inches) deep; And AC Scan detects live unshielded AC wires up to 51 mm (2 inches) deep. The multifunctional wall scanner sensor has a backlit graphic LCD display, which can show many clues during the detection process. This stud finder has an automatic calibration function. Place it flat against the wall, turn on the power switch, and then press the \"Scan\" button to start calibration. The stud finder scanner can accurately and quickly locate studs, metals, pipes, steel bars, beams, the edges and center of beams, and live AC wires hidden behind walls, floors, and ceilings. It can also meet your actual needs in drywall, plastered walls, plasterboard, wall coverings, etc. High-quality and high-precision detection saves you a lot of time and energy, makes tasks easier, and brings convenience to your life. Package Includes: 1X Stud Finder Specifications: Material: ABS+Metal Size: 180x80x35mm/7.09x3.15x1.38in Color: Red/Silver Note: Please allow 1-3cm error due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.