The GC-101H ultra-sensitive hand-held metal detector is a high-performance metal detector designed for security. ??Compared with the traditional detector, the GC-101H type case is made of ABS engineering plastic. ??Based on the special design of the detection area, the more advanced sound amp, light alarm device and vibration alarm device, the higher sensitivity and more accurate alarm. ??Much power-saving, longer working hours. That makes it different in its class is its unparalleled streamline design. ??The product uses a large-scale CMOS integrated circuit, an electronic buzzer sounds, and has a detection function for objects such as ferromagnetic and metal. ??Beautiful appearance, small size, simple operation, strong resistance. ??It is an ideal product for checking illegal items.