Price includes: BA-440 reader, BA-MP mounting post, BA-440-EXT-24 power supply & BA-440-Output Module How BAi Barcode Systems work: Barcode Reader is positioned the recommended 25ft before the gate. Barcode Decal is applied to each authorized vehicle on the rear side window facing the Reader. Barcode Reader processes the Barcode Decal as the vehicle passes—instantly and automatically! Decrease traffic congestion by reducing entry times. Reads decals on vehicles traveling up to 25 mph. Guaranteed read range of 6 ft out from the reader. Works on all vehicles from luxury sedans to golf carts, regardless of window treatment. Reader disregards all fake decals. Photocopies, color replicas, and digital images will not work. Easily integrates with all gate manufacturers, access control panels, and visitor management systems. Reduce the workload of gatekeepers and security personnel.