Precise Calibration Function This locator benefits from a powerful sensor that can detect wood, metal objects and live wires accurately and timely. It guarantees accurate results even in complex environments. And it can help detect invisible objects in difficult corners. Avoid drilling water pipes and wires hidden in walls and take readings efficiently. Multi-function detection 4-in-1 detectorWe have 4 modes for this stud detector sweep: first: 3/4 inch (19mm), second: 11/2 inch (38mm), third: metal sweep (60mm) fourth: AC sweep (51mm). With its four detection functions, the detector eliminates the danger of drilling and is the ideal choice for builders, plumbers, electricians, carpenters and anyone who needs to detect studs accurately. Detector with LED DisplayOur detector is equipped with LCD display, clear and high definition, so you can read the mode indicator very clearly, judge the strength of the detection signal, view the indicator battery life and midpoint and other information to effectively adjust the detection and help you work to the fullest. Three locating modes Dry mode, metal mode and live wire mode. The "metal" mode is used as a metal locator and the other mode is used to locate studs, telecoms, etc. Built-in LED light and sound signal help interpret measurement results. Anti-slip and Ergonomic DesignThe sides of this detector are covered with non-slip material, ergonomically shaped for a firm grip and non-slip and very comfortable to hold with one hand, the lightweight and portable detector fits easily in your pocket and can be taken anywhere.