High Sensitivity: Sensitive detection, built-in high-precision detection loop, stable performance, and easy to use. It can even detect small hidden metal objects. Durable and Sturdy Material: Handheld metal detector is made of high-quality ABS material, anti-fall, anti-vibration, durable, and has a longer service life. The LED light is also activated to detect metal. The high/low sensitivity setting allows you to maximize its scanning capabilities. With Automatic Alarm Function: With vibration alarm, 22KHZ high transmission frequency, reliable to use. The working time is more than 40h. Comfortable Handle: The lightweight design of the metal detector rod and the 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.