Easy and convenient to operate
The manual part makes anti-smoothy design
Two sides both alarm with flashing red light when detecting metal articles.
Low battery waste: no waste when stop working, below 1mA when working.
Super-high accuracy and sensitivity that be able to detect very small metals( up to 0.1g)
The system be able to inspect power source and battery failure, power insufficient .
Alarm in different sounds according to different metals, and connect earphone available in harmonious surroundings