Features 1、ACCURATE AND FAST: Stud finder uses a highly sensitive smart microprocessorchip to accurately and quickly locate the edges and centers of metal, studs, joists, pipes and AC lines behind wall, floors and ceilings. Save user's time and energy and complete the task more easily. 2、5 IN 1 DEPTH INSPECTION: 5 in 1 electronic stud finder has 5 scanning modes. Provides users with more inspection needs. Suitable for professionals, homeowners or DIY enthusiasts . 3、LARGE LCD DISPLAY AND SOUND ALARM: The stud finder is equipped with a large LCD display and sound alarm, which helps to detect the exact position of the object in addition to displaying the detection mode, center point, low battery indicator and more. 4、AUTO CALIBRATION: The stud beam finder adopts auto calibrates to provide you with maximum reliability and accuracy, place the LCD on the wall you want to check the calibration on in stud or depth mode, or place it in the air to calibrate in AC or metal mode. 5、USES: The 5 in 1 electronic stud finder quickly locates wood, metal and AC wires in the wall, floors and ceilings of your house. It works on slats, wallpaper, wood floors, acoustic ceilings, painted wall and more. Avoid hazards when installing TVs, cabinets, garage shelves and more. Specifications Item Type: Stud Finder Material: ABS Weight: Approx. 157g/5.5oz Use: Cable Detector Battery: 6F22 Batteryx1, 9V (Not with Battery Delivery) Package List 1 x Stud Finder (Battery Not Included) 1 x Manual