What metal sets off metal detectors?

Metals such as iron, nickel and cobalt are detected by passive and active metal detectors. Other metals, such as copper, brass and aluminum, are detected only by active means. Walk-through metal detectors are categorized as single-zone or multiple-zone.



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If the person is carrying any metal objects, the metal will disrupt the magnetic field or the electromagnetic field. This disruption will cause a classic metal detector circuit to set off an alarm.

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Empty your pockets and place your belongings onto the tray so the items can be scanned. Summary: ? Jeans are fine to wear through airport security.

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Although some have claimed otherwise, there are thousands that wear underwire bras through airport security each day without setting off the alarm. If you really want to avoid setting off the metal detectors at all costs, consider wearing an underwire bra with plastic, a strapless bra or a sports bra.

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