MD-8 Hand Held Metal Detector

The MD-8 is a high performance handheld metal detector designed to meet
the exact requirements of the security industry. Typical usage includes body search
for weapons in crowd control, airport and border security, checking parcels and
letters for metal objects and anywhere that hidden metal needs to be detected.

Specifications:
Power: 9v(6F22)
Working frequency: 22khz
Working electric current: <50Ma
Working voltage: 7v-9v
Indicator: Visual: Red/Green LED;
Alarm style : sound and vibration
Control: On/Off Switch;
Sensitivity: Switch Sensitivity Adjuster
Detection Distance:
Detecting pin: 10-30mm 
64-type gun: 120mm
6inch dagger: 130mm
D20mm steel ball :90mm (120mm at max sensitivity)