This multi-function stud finder wall scanner can provide you with more detection needs. The upgraded 5-in-1 mode can accurately detect wood, metal and current. The 1/2inch scan mode locates wood centers and edges to a depth of 1/2inch; the medium scan mode locates wood to a depth of 1inch; the deep scan mode locates wood to a depth of 1.5inch. The metal scan detects metal to a depth of 2.36 inches; the wire scan detects live unshielded AC wires to a depth of 2 inches.This wall stud finder uses the most sensitive smart micro-sensor chip, which can more accurately detect metal, wood and live cables hidden in walls, ceilings and floors.This stud finder with LCD display and audible alarm, it can detected exact position of the object. When an object is found, the LCD display will indicate the direction, and the intensity of the beep will also tell you how close you are to the target. The LCD also has a backlight function, which can provide a clear display even under low light conditions.This stud detector is easy to use and can be turned on with one button. Automatic quick calibration, and the intuitive LCD display allows you to easily and successfully locate the center of the stud. It provides users with maximum reliability, effectively reduces errors in applications, and ensures accurate detection of objects hidden behind walls and boards.This stud finders & scanners is applicable to a variety of scenes, whether in construction site, interior decoration, renovation, drilling, etc. This studfinder can help quickly locate the wood, metal and AC wires hidden in the wall.floor and ceiling of the house, so that you can drill no longer dangerous. Each detector is also equipped with a bubble level, which can effectively help you measure whether objects are placed horizontally.