Features: Precision and Speed: The stud detector, equipped with a highly sensitive intelligent microprocessor chip, swiftly and accurately detects wood, pipes, metal, and AC wires concealed in walls. 5-in-1 Multi-Functional Detection: Offers five scanning modes including ½ in, 1", and 1½ in modes for pinpointing the center and edges of wood, beams, joists, metal, or deeply embedded objects. The metal scanning mode identifies both ferrous and non-ferrous metals up to a depth of 2.36 inches. The AC scanning mode detects unshielded 80 to 240 AC voltage lines up to a depth of 2 inches. Automatic Calibration, User-Friendly: Simply turn on the stud finder, place it flat against the wall, press the scan button, and it's calibrated and ready to go. The smart micro sensor chip flashes and beeps when it detects hidden wood, metal, and AC lines. LCD Display and Audible Alert: The signal bar on the LCD display indicates the distance and direction of nearby objects, while the audible alert helps pinpoint their location. The backlit LCD display ensures clear visibility even in low-light conditions. Wire Warning Indication: When scanning in stud, depth, or metal scan modes, the wire warning remains active to alert you of live AC power. This feature helps prevent hazards during the installation of TVs, bathroom cabinets, picture frames, and garage shelves. Specification: Color: black Material: abs Power supply: 9V Battery: 9v 6F22(not included) Product size: 15.2 * 6.2 * 2.8cm Package size: 16 * 7.8 * 4.5cm Package weight: 168g Packing List: 1 * Wall Scanner Key Features: Accurate and Fast: Equipped with an intelligent microprocessor chip for high sensitivity, the stud detector swiftly and accurately locates wood, pipes, metal, and AC wires hidden in walls. 5-in-1 Multi-Functional Detection: Features five scanning modes for versatile use. These include ½ in, 1", and 1½ in modes for pinpointing the center and edges of wood, beams, joists, metal, or deeply embedded objects. Metal Scanning Mode: Capable of detecting both ferrous and non-ferrous metals up to a depth of 2.36 inches. AC Scanning Mode: Designed to detect unshielded 80 to 240 AC voltage lines up to a depth of 2 inches. Automatic Calibration: Easy-to-use with automatic calibration. Simply turn on the device, place it on the wall, and press the scan button. LCD Display and Audible Alert: Features a signal bar on the LCD display that indicates the distance and direction of nearby objects, and an audible alert for pinpointing their location. The backlit LCD display ensures clear visibility even in low-light conditions. Wire Warning Indication: Alerts users to the presence of live AC power when scanning in stud, depth, or metal scan modes, helping to prevent potential hazards during installation tasks. Accurate and Fast: Equipped with an intelligent microprocessor chip for high sensitivity, the stud detector swiftly and accurately locates wood, pipes, metal, and AC wires hidden in walls. 5-in-1 Multi-Functional Detection: Features five scanning modes for versatile use. These include ½ in, 1", and 1½ in modes for pinpointing the center and edges of wood, beams, joists, metal, or deeply embedded objects. Metal Scanning Mode: Capable of detecting both ferrous and non-ferrous metals up to a depth of 2.36 inches. AC Scanning Mode: Designed to detect unshielded 80 to 240 AC voltage lines up to a depth of 2 inches.