Walk-through gates, also known as walk-through metal detectors, are security devices used to detect metal objects on individuals passing through them. They are commonly found in high-security areas such as airports, government buildings, and corporate offices. These gates typically consist of two panels, each containing a metal detector coil, which creates an electromagnetic field. When a person walks through the gate, the metal detector coils sense any metal objects on the person and trigger an alarm if the amount of metal exceeds a preset threshold. Walk-through gates are designed to be highly sensitive to detect even small metal objects, such as weapons, tools, and jewelry. They are also designed to minimize false alarms caused by common items like keys and coins.
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