Hand Held Super Scanner Metal Detector induction for weapons 

Power: 9V (6F22) alkaline battery
Operate Frequency: 25 KHz 
Operating Temperature: -5℃to +55℃
Operate Current: < 50mA
Operate Voltage: 7V-9V
Net Weight: 225g/piece
Color: Black
Dimension: 375mm(L)*75mm(W)*35mm(H)
Alarm: Sound & Red LED visual light,  or vibration & LED visual light
Optional: Charger
High Sensitivity: Pin at 30mm; USD 25 Cent at 75mm
Low Sensitivity: Detector only responds to bigger metal article such as a 64-gun (18cm),  6 inches knife (18cm).

Description:
AT2009 can easily detect weapons, such as knife and gun, and any metal articles which are hidden in human body. Good at anti-shock: no broken if drop to the ground. Warranty: 12 months (parts)

Applications:
Airports, Sporting Events, Prisons, Nuclear Facilities, Correctional Facilities, Transportation Terminals, Public and Private Buildings, Loss Prevention, Schools, Corporate Security, Stadiums/ Concerts, Historical Landmarks