Features: Multi probe wall scanner 5 in 1 stud wood metal wiring humidity detector in one. Adopts new low-power chip technology high-sensitivity metal probe, fully automatic black light, data is clearly visible in low light and conditions. Quickly locate wood, metal and AC wires hidden in house walls, floors and ceilings, avoiding danger when installing TVs, cabinets, garage racks, etc. Sensor is located near the marked hole to locate the center target to ensure detection accuracy. With digital LCD display and audio alarm, which helps to detect the accurate position of the object, can be used in slats, wallpaper, wooden floors, acoustic ceilings, painted walls and more. Specifications: Name: 5 in 1 Stud Finder Battery: 9V battery (shipping without battery) Battery Model: 9V battery 6F22 Material: Plastic Color: Black, Orange, Black Silver(optional) Size: Approx. 152x62x28 mm/5.98x2.44x1.10 inch Multifunction Wall Scanner Hw430 Features Five Scanning Modes: Stud 1/2in. scan: Locates the center and edges of wood and metal studs up to 1/2in. (13 mm) deep Stud 1 in. scan: Locates the center and edges of wood and metal studs up to 1 in. (25 mm) deep Stud 1-1/2 in. scan: Locates the center and edges of wood and metal studs up to 1-1/2 in. (38 mm) deep Metal Scan: Detects metal up to 2.36 in.(60mm) deep AC Scan: Detects live unshielded AC wires up to 2 in.(51mm)deep Note: Please allow 1-2cm errors due to manual measurement,pls make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1 Piece 5 in 1 Stud Detector