Walk Through Metal Detector

The metal detector works by generating a short pulse induction magnetic field across the opening. If a metal object passes through the detector, it creates an echo pulse that can be detected by the electronic circuits.

The latest walk-through detectors include multiple detection zones, so you can identify where the metal object is located. For example, a single zone walk-through detector only indicates that metal was detected. A two-zone detector can indicate if the metal is on the right or left side. The more advanced detection systems can pinpoint the location with greater accuracy. For example, it can determine if there is a gun located at the ankle or belt.