General description This 4 in 1 Wall Detector is a versatile tool designed for detecting wood studs, metal, and AC wires within walls. It features an LCD display for easy reading and offers multiple detection modes to ensure accurate results during installation tasks such as mounting TVs or cabinets. Technical specifications Detection Modes: Stud scanning, deep mode, metal scanning, AC scanning Wood and metal stud detection depth: 19 mm Deep scanning maximum depth: 38 mm Metal detection maximum depth: 60 mm AC wire detection depth: 51 mm 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 dimming bar disappears and a beep sounds. In metal/AC mode, place the detector in the air for calibration. Usage Use the stud scanning mode to locate the center and edge of wood and metal studs. The display screen indicates the detection mode, signal strength, and direction. The buzzer's intensity varies based on the distance to the target, allowing you to mark the position when the sound is loudest. AC warning function alerts you to the presence of live wires. Other information Package includes: Wall detector x1, Battery x1