1. Multi-probe wall scanner 5 in 1 wood metal wiring moisture detector in one. 2. Can detect metal hidden in walls and ceilings to avoid danger when you install , cabinets, garage racks, etc. 3. High-sensitivity metal probe with new low-power chip technology. 4. Fully automatic , the data is clearly visible in low light and conditions. 5. Suitable for a of materials, to avoid tedious easy to use, screen display probe distance data, accurate detection location. The sensor is located near the marker hole and locate the center target to detection accuracy. Use: Quickly locate wood, metal and AC wires hidden in the walls, floors and ceilings of houses. It can work in slats, wallpaper, wood floors, acoustic ceilings, painted walls, etc. Feature: The multifunctional wall scanner HW430 has five scanning modes: Stud 0.5 inch. Scan: locates the center and edges of wood and metal studs up to 0.5 inch. (13mm) Deep stud 1 inch. Scan: Locates centers and edges of wood and metal studs up to 1 inch. (25mm) Deep studs 1.5 inch. Scan: Locate up to 1.5in. centers and edges of wood and metal studs. (38mm) deep metal. Scan: Detects metal exchanges up to 2.36 inch. (60mm) deep. Scan: Detects live unshielded AC wires up to 2 inches (51mm) deep. Name: 5 in 1 Stud Detector Battery: 9V battery (without battery) Battery model: 9v battery 6F22 Size: 152x62x28mm/5.98x2.44x1.1inch colour: black Material: Plastic Package Contents: 1 x Metal Detector Only the above package content, other products are not included. Note: Light 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.