Metal detectors are used for various purposes for instance security maintenance, system recovery, archaeological situation, and geological research. Airport metal detectors scan people just before entering the boarding area and into the aircraft. Airport metal detectors are electronic musical instruments for identifying a variety of metal objects. Terrorism, hijacking, and bombings get lead to installing airport metal alarms for security good reasons. It ensure in which no weapons as well as smuggled goods are given the airport premises or into the aircraft.