- MultipurposeMultifunction Stud Detector has nail find and metal, stud scan, NAIL scan, depth scan and joists, wood, wire in walls, ceilings and floors. - UsesWall detector is suitable for drill, measuring distance, length, etc. Can help you avoid danger when installing TVs, cabinets, garage shelves. - Maximum Detection DepthWall Scanner Scan, metal: 60 mm, stud: 38mm, cable: 51mm. - LCD DisplayElectronic stud detector, high sensitivity, when wall detector close to the object, the LCD display will show distance, a beeping sound appears, indicating that the closer the object, the faster the sound. - Three Working Modes: This Wall Scanner is designed with three working modes, you can switch the mode between stud scanning mode, metal scanning mode and NAIL scanning mode according to the object you want to detect. The LCD picture changes according to the mode. Specification: - Metal Detection Range:60 mm - stud Detection Range: 38mm - wire range:51mm Size Chart: 16.5cmx7.4cmx4cm/6.50inchx2.91inchx1.57inch Package Includes: 1 Piece Wall Detector Note: Please allow slightly errors due to manual measurement and different monitors.