General description This FLITI 4-in-1 Wall Detector is a versatile tool designed for detecting wooden studs, metal, and AC wires within walls. It features an LCD display that provides clear information during the detection process, making it easier to install fixtures like TVs and cabinets accurately. Technical specifications Detection Modes: Stud scan, Depth mode, Metal scan, AC scan Wooden and metal stud detection depth: 19mm Maximum depth for depth scan: 38mm Maximum metal detection depth: 60mm AC cable detection depth: 51mm Usage 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, hold the detector in the air for calibration. During detection, the screen displays the mode, signal strength, and direction indication. The buzzer's intensity varies based on the distance to the target, allowing you to mark the loudest point.