High Sensitivity: Sensitive detection, built-in high-precision detection loop, stable performance and easy to operate. It can even detect small hidden metal objects. Durable and sturdy material: Handheld metal detector is made of high quality ABS material, anti-drop, anti-vibration, durable and longer service life . The LED light is also activated to detect metal. High/low sensitivity setting allows you to maximize its scanning capabilities. With automatic alarm function: With vibration alarm, 22KHZ high transmission frequency, reliable in use. The working time is more than 40h. Comfortable handle: The metal detector's lightweight rod design and comfortable handle make it easy to use for a long time. Equipped with a belt clip, easy to carry. Wide range of applications: Security checker is widely used in airports, stations, examination rooms, conference rooms and metal processing plants.