Wall Scanning Sensor: Designed for quickly and efficiently locating wall pillars, detecting metal, and alerting you to live AC wires. Equipped with three scanning modes: Auto Scan, Metal Scan, and Live AC Wire Scan. Center Locator: This wall scanner includes a center locator that accurately centers objects using an audible signal emitted via an on/off button. This rapid detection undoubtedly saves you time and effort. Auto Scan: The 110mm auto scan mode measures metal, PVC pipes, and live AC conductors under drywall. In auto mode, metal is detected before other materials. Digital Display: Features a backlit graphic LCD display indicating mode, detection intensity, and other information; a large flashing detection ring indicates no object detected (green), an object nearby (orange), and an object detected within sensor range (red). Applications: Features wood, metal, and live wire modes for quickly and easily locating wooden and metal pillars, beams, purlins, metal pipes, rebar, and live AC wires behind walls,