Trustworthy security metal detectors supplier, factory, exporter, manufacturer, provider from China. SA300C Economic 33zones Arched Metal Detector Gate(Door Frame Metal Detector) Displaying exactly zones in video: There are 33 total detection zones: 11 from top to bottm each having 3 separate detection zones to indicate left, center or right side. The 11 detection zones from top to bottom are grouped into 6 adjustable areas(labeled as zones 1-6) in order to simplify thee adjustment process for the operator. The intermediate zones are automatically adjusted internally based on the adjustment settings of zones 1-6.
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