It can be used for public security in airports， railway stations， docks， prisons， customs and frontier defense as well as quality control of medicine， food and other commodities.

With very low power consumption， this detector can work for over 40 hours continuously

Use a coin to test the metal detector function. When the coin passes the detector the LED power light will be on and a short beep can be heard.

Low voltage alarm: when you turn on the power switch of the metal detector but hear continuous alarm， it means the battery voltage is low and should be replaced.

Sensitivity:A25-cent coin 65mm
Lron pipe-tube in D20MM 120MM
Temperature environment -10 Celsius degree to 50 Celsius degree
Operating current <8ma
Operating Frenquency:25KHz
Tuning Antomatic
Alert audio
Power 6F22 9V*1(NOT INCLUDED)
Size 392mm(operation) 258mm(storage)
weight:230g (without battery)

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