Parts List: 1 x Stud Finder Wall Scanner 1 x Instruction Manual Highlight description: [Upgraded Sensor Chip] The stud finder wall scanner uses an upgraded sensor chip, which senses changes in the density behind the wall and helps locate the center and edges of the columns very accurately [Multifunctional] This wall wood metal stud detector quickly locates wood, metal and AC wires hidden in the walls, floors and ceilings of your house. It works on slats, wallpaper, wood floors, acoustical ceilings, painted walls and more. Avoid hazards when you are installing TVs, cabinets, garage racks and more [Alarm Design] The edge center beam finder has an alarm design to keep you aware of the wall condition and make the operation more accurate [Accurate] Our stud sensor can clearly identify what objects are in the wall, more intuitive and accurate [Wide Application] This wall wood metal stud detector is widely used and can be used whenever you want to see the inside of an opaque object Detailed description: Specification: Product Name: Stud Finder Wall Scanner Material: ABS Color(optional): White, Black, Yellow Size: 17.7x7x3cm Green backlight Low voltage indicator Battery type: 9V battery (not included) Working current: ＜50ma Shutdown current: ＜10UA Auto shut off time: 3 minutes Stud Mode In stud mode, there are 3 scanning modes to choose from to get the right thickness scanning surface: 1/2inch Scan mode detects 1/2inch (13mn) deep. 1inch scan mode inspects 1inch (25mm) deep. The 1 1/2inch scan mode can detect 1 1/2 inches (38mm) deep. If you do not know the depth of detection, it is recommended to use the 1/2inch scan mode first. When the 1/2inch scan mode is not detected, use the 1” or 1 change to 1/2inch scan mode. Metal mode: Magnetic metal can be detected up to 3.2inch (80mm) deep (15mm diameter galvanized steel pipe) It can detect non magnetic metals up to 2.4 inches (60 mm) (13 mm dia. (copper pipe). AC Mode: Detects unshielded AC energized conductors up to 2 inches (51mm) deep. Note: 1. There may be slight differences between the picture and the actual color of the commodity. We will try our best to show you the exact color. 2. Please allow slight dimension difference due to manual measurement. [Upgraded Sensor Chip] The stud finder wall scanner uses an upgraded sensor chip, which senses changes in the density behind the wall and helps locate the center and edges of the columns very accurately [Multifunctional] This wall wood metal stud detector quickly locates wood, metal and AC wires hidden in the walls, floors and ceilings of your house. It works on slats, wallpaper, wood floors, acoustical ceilings, painted walls and more. Avoid hazards when you are installing TVs, cabinets, garage racks and more [Alarm Design] The edge center beam finder has an alarm design to keep you aware of the wall condition and make the operation more accurate [Accurate] Our stud sensor can clearly identify what objects are in the wall, more intuitive and accurate [Wide Application] This wall wood metal stud detector is widely used and can be used whenever you want to see the inside of an opaque object