5 in 1 Multifunction Wall Metal Detector Depth Search for Metal Wood Studs Live Wire Detection Wall Scanner Electric Box Finder  Features:  1. Rapid detection of the central position of the stem  2. LCD display, easy to read  3.All detection functions have automatic correction function.  4. All detection functions have AC warning function.  5. Display the edge of the wood rack  6. Low Voltage Display 7.Material: ABS Shell  8.Power supply: 1*6F229V battery (not included)  Description:  This stud finder is designed to find the wooden or metal stud and avoid the metal and AC wires. This item features five scanning modes: Stud 1/2 in. Scan Mode: Locates the center and edges of wood and metal studs up to 1/2 in. (12 mm) deep Stud 1 in. Scan Mode: Locates the center and edges of wood and metal studs up to 1 in, (25 mm) deep Stud 1½ in. Scan Mode: Locates the center and edges of wood and metal studs up to 1½ in. (38 mm) deep Metal Scan Mode: Detects metal up to 2.36 in. (60 mm) deep AC Scan Mode: Detects live unshielded AC wires up to 2 in. (51 mm) deep