MD-200 is a kind of small Hand-Held Metal Detector,which is a special machine to security inspection.This machine is convenient to use, no adjustable controller,quickly reaction when detecting metals,and sound and light simultaneous alarming.It would sound clearly in low frequency when detecting small metal.
It would sound clearly in high frequency when detecting big metal.

Operating frequency: 20 Khz
Weight: 272 g
Size: Length: 420mm
Width: 138mm
Height: 110mm
Handle measurement: 30X30mm
Regulate the way: Manual
Indicator: BZ, vibration motor
LED light proves: LED red warning indicator lamp LED green insufficient indicator lamp of voltage of indicator lamp LED battery of power
Battery: A 9V battery (suitable for working for 40 hours normally) Control: Circulation switch (ON, OFF, a sound of light or mode of vibration

Characteristics:
1 Use cycle-switch to switch sound alarm and hidden vibration alarm respectively
2 Hight sensitive, detect ferror metal and non-ferror metal
3 Sound and light alarm simultaneously
4 Alkaline cell (7V-9V) can work over 40 hours and distance does not change
5 Warn automatically when short of voltage

Detecting distance:
Ferrous Metals Non-ferrous Metals
1 1/2pin 10mm 1 Aluminum&copper sheet 10mm
2 model 64 pistol 150mm 2 DIP14 IC(integrate circuit) 5mm
3 6 inches dagger 150mm 3 Silver ring 1g 40mm
4 8mm(diameter) 40mm 4 Lead brick 1g 30mm