DIFFERENT SCANNING MODES -- This electronic wall scanner detector has stud scan mode, deep scan mode, metal mode and AC mode, providing different scan options and accurate resultsLED screen indicator will give you clear direction and exact position of target, its audible warning will tell you that target is on the edge or center of wall Good calibration In stud and depth mode, just calibrate on wall; In metal and AC mode, please calibrate in the air. Accurate warning on metal or wire to avoid you drilling holes in metal or wire or other mishaps Versatile Use This quality stud finder can be used on a wide variety of objects and wall structures. Our stud detector can help you quickly detect studs, AC wires, metal on walls, floors and ceilings. Simple to use This wall scanner is easy to use, just hold the stud detector as you move around the wall on both sides of the device. Once a target is detected, a large LED screen will display its precise location on the wallNote, because there may be color and size differences between the light effect photos and the actual product, please allow 1-2 cm errorQuantity: (1-pack) Wall Scanner Detector (other products not included)Size: 165*75*35mm (for reference only)Color as shown