Features of MD-200 Hand held metal detector: 

1) Operating frequency: 20kHz

2) Weight: 272g (including the battery)

3) Size:

    a) Length: 420mm

    b) Width: 138mm

    c) Height: 110mm

4) Handle measurement: 30 x 30mm

5) Regulate the way: manual

6) Indicator: BZ, vibration motor

7) LED light proves: LED red warning indicator lamp, LED green

    insufficient indicator lamp, voltage indicator lamp LED battery of power

8) Battery: 9V battery (suitable for working for 40 hours normally)

9) Control: circulation switch (On, Off, a sound of light or mode of

   vibration)

10) Uses cycle-switch to switch sound alarm and hidden vibration alarm

   respectively

11) Highly sensitive, detect ferrous and non-ferrous and stainless steel

weapons

12) Sound and light alarm simultaneously

13) Alkaline cell (7V-9V) can work over 40 hours and distance does not change

14) Warn automatically when short of voltage

15) Simple, convenient to use, easy to adjust

16) Detecting distances:

      a) 1/2 pin: 10mm

      b) Model 64 pistol: 150mm

      c) 6" dagger: 150mm

d) 8mm (diameter): 40mm

e) Aluminum & copper sheet: 10mm      

f) DIP14 IC (integrate circuit): 5mm

  g) Silver ring (1g): 40mm

h) Lead brick (1g): 30mm