Applications: slats, wallpaper wood floors, sound-absorbing ceilings, painted walls, etc. Accurate and Fast Stud Finder Using the most sensitive smart micro sensor chip, it can accurately and quickly find the edges and centers of live AC wires behind metal, studs, joists, pipes, walls, floors and ceilings. LCD Display and Audio Alarm This stud finder is equipped with LCD display and audible alarm to detect the exact location of objects. When an object is found, the intensity of the beep indicates whether you are getting closer to the target. Easy to use Open the stud finder, lay it flat on the wall, press the scan button to calibrate. The smart microsensor chip flashes and beeps when it finds hidden wood, metal and AC wires. Wide application This wall detector can work on different wall surfaces such as slats, wallpapered wood floors, sound absorbing ceilings, painted walls etc. Due to differences in different monitors, the pictures may not reflect the actual color of the item.