1.Easy and convenient to operate

2.The manual part makes anti-smoothy design

3.Two sides both alarm with flashing red light when detecting metal articles.

4.Low battery waste:no waste when stop working,below 1mA when working.

5.Super-high accuracy and sensitivity that be able to detect very small metals(up to 0.1g)

6.The system be able to inspect power source and battery failure, power insufficient .

7.Alarm in different sounds according to different metals,and connect earphone available in harmonious surroundings