[5 In 1] Stud finder has 5 scanning modes to meet your different scanning needs, 1/2 inch (13mm), 1 inch (25.4mm), 1.5 inch (38mm) scanning mode for stud, 2.36 inch (60mm) scanning mode for metal, 2 inch (51mm) scanning mode for AC. [High Accuracy]The wall scanner adopts intelligent micro-sensor chip with highest sensitivity, which can accurately and quickly find edges and center of metal, studs, joists, pipes, live AC wire behind walls, floors and ceilings. [Audio Alarm] Wall detector has audio alarm, which can tell you the exact location of the objects. When the wall detector approaches the edge or center of the target, it emits a beeping alarm, helping you find the object quickly. [LCD Display] Electronic stud finder comes with a large LCD display with backlight, which provides you with clear direction and accurate target location even in the darkness or narrow place, protecting your eyes. [Wide Application] Portable wall scanner can work on different wall surfaces, such as lath, wallpaper wood flooring, acoustic ceiling, painted walls, etc. It helps you avoid danger when installing TVs, cabinets, garage racks, etc., Manufacturer: QAXRZCUCD