15 SCANING MODES: The digital wall scanner has 5 scanning modes, which can locate the center and edge of wood, beams, joists, metal or deeply buried objects. 2SENSITIVE SENSOR: Using sensitive smart micro sensor chip, can quickly find the edges and centers of metals, studs, joists, pipes, and live AC wires behind wall, floors, and ceilings. 3LCD DISPLAY: The stud detector has an LCD digital display, which can quickly detect the exact position of studs and other objects. 4EASY OPERATION: Turn on the electronic stud detector, and then place it flat on the wall, and press the scan button to calibrate. 5WIDE APPLICATIONS: Can be used for different wall, such as slats, wallpaper wood floors, sound absorbing ceilings, painted wall, etc.