5-in-1 STUD FINDER : Homder stud finder is a high sensitivity handheld wall detector for home decoration,which used to detect the center position of the metal or wood stem in the wall,and can also detect the metal position and live AC wires position. It offers 5 detection modes to meet all the needs of home wall DIY projects.5-in-1 Wall Scanner:This stud finder provides 5 scanning modes, Include 1/2 in.stud scan(up to 13mm deep), 1 in.stud scan(up to 25mm deep), 1.5 in. stud scan(up to 38mm deep), Metal scan up to 2.36 in. (60 mm) deep, AC scan up to 2 in. (51mm) deep.Good for wood, beams, joists, metal, AC wires as well as deep embedded objects behind the floor, ceiling and walls.LCD DISPLAY AND AUDIBLE WARNING: Homder digital stud detector features large LCD display together with the big sound warning to detect the accurate location of the objects. When find the material, the LCD display will indicate the direction and the intensity of beeping tells whether you are more close to the target. The fast detection saves users time greatly.AUTO CALIBRATION :Press the Scan button to start calibration, the decreasing bars will disappear and buzzer will beep one time and the calibration is completed. Keep tool flat against the wall and do not rock, tilt, or press hard when slowly sliding across the surface being scanned.Once the edge of the stud is picked up, the stud finder will beep. The multi-function stud finder uses state-of-the-art sensor technology to accurately and quickly position rivet wood metal AC wires!Wide Use and 100% Warranty --- Homder stud finder not only gives y