General description This 4-in-1 Wall Detector is designed for detecting wooden studs, metal, and AC wires within walls made of wooden boards and plasterboard. It is an essential tool for accurately installing TVs, cabinets, and drilling holes in walls. Technical specifications Detection Modes: Stud scan, Depth mode, Metal scan, AC scan Wood and Metal Stud Detection Depth: 19mm Maximum Depth Scan Positioning: 38mm Maximum Metal Detection Depth: 60mm AC Cable Detection Depth: 51mm Color: Black and Silver Installation Calibrate the detector before each scan by selecting the mode and pressing the scan button. Calibration is complete when the dim bar disappears and a beep sounds. In metal/AC mode, ensure the device is placed in the air for calibration. Usage Use the stud scan mode to locate the center and edge of wooden and metal studs. The screen displays detection mode, signal strength, and direction indication during use. The buzzer's intensity varies based on the distance to the