High sensitivity: sensitive detection, built-in high-precision detection loop, stable performance and easy operation. It can even detect small hidden metal objects. Durable and sturdy material: The handheld metal detector is made of high-quality ABS material, drop and vibration resistant, durable and has a longer service life. The LED light is also activated to detect metal. By adjusting the high/low sensitivity, you can maximize the scanning functions. With automatic alarm function: with vibration alarm, 22 kHz high transmission frequency, reliable in use. The working time is more than 40 hours. Comfortable handle: The lightweight design of the metal detector wand and the comfortable handle allow it to be easily used for a long time. Equipped with a belt clip, easy to carry. Wide range of applications: The security checker is widely used in airports, train stations, examination rooms, conference rooms and metal processing plants.