High Sensitivity Wire Detector: When monitoring the live wire in the three detection modes, an AC wire warning sign will appear on the screen LCD. The highest point will be the center of the column. When you find the target, a beep will remind you.Auto Calibration: Before testing, please press the scan button and hold it for 1-2 seconds, the wall mounted metal detector will be calibrated. When the job is done, a beep reminds you. If the button was initially released accidentally, or you think it should be released in the process, you may need to recalibrate your material detector.Excellent Backlight Display: The metal detector has LCD backlight function, which can provide clear appearance even in low light conditions, showing detecting mode, center direction and low battery indication. Audio instructions, sound reminders.Ergonomic design: designed with a soft grip to provide comfort and better control of the tool .Easy to read: It features a green backlit screen, beeps and visual indicators for accurate detection. 1) Quickly detect the center position of the rod2) LCD display, easy to read 3) It can detect wood and metal rods, and the wall thickness is less than 1 1/2 inches (38 mm)4) Metal pipes can be detected and the thickness of the wall is less than 3 inches (76 mm)5) It can detect live wires in the wall and the thickness of the wall is less than 3 inches (76mm)6) Automatic recognition of all detection functions