Wide Application: This finder can be used to detect the position of the center of the wooden rod in the walls of wooden boards and plasterboards, as well as the position of metal and AC cables, so that you can accurately install TVs, cabinets, drill holes in the wall, etc. 4 in 1 Detection Mode: This stud finder has 4 different modes that can be switched: stud scanning, deep mode, metal scanning and AC scanning. Multifunctional: Stud scanning is used to find and locate the center and edge of wooden and metal studs with a depth of 19 mm; The maximum positioning depth of deep scanning is 38 mm; The maximum metal detection depth reaches 60 mm; AC Scanning can detect AC wires with a depth of 51 mm. Screen Display and Alarm Prompt: During the detection process, the display screen will indicate the detection mode, signal strength, direction indication, etc. In addition, the intensity of the buzzer will vary depending on the distance between you and the target, you can mark the position with a marker when the sound is loudest. And it has an AC warning function. Easy to Calibrate: You need to calibrate the detector before each scan. You first select the mode, then press and hold the scan button (on the right side of the tool) to calibrate the tool. The calibration is complete when the dimming bar disappears and a beep sounds. In metal/AC mode, you need to place it in the air for calibration. Product size: 172*76*37mm Product color: silver black Delivery quantity: One piece