With the CodeGate function the Voyager 9540 implements the convenient reading of barcodes. This unique scanning technology makes barcode scanning for most users easier and safer: whenever a barcode comes into scanning range, the barcode sensor activates the scanner automatically. Without CodeGate, scanned barcodes will be decoded immediately and sent to the Computer automatically. This is certainly practical and convenient, but not always the best for all applications: while scanning several barcodes from lists at a time, incorrect barcodes may be submitted easily. For this reason Honeywell has designed the CodeGate button for the Voyager 9540. The button is ergonomically situated on top of the scanner’s housing and may be conveniently operated by thumb. If the CodeGate function is activated, the scanner still activates itself automatically and scans the barcode. The barcode information, how­ever, is only transferred to the computer when the user presses the CodeGate button to confirm that it is the correct barcode. This function always comes in handy when it is important that only correct barcodes are transferred. CodeGate scanners are not only useful for menu scanning from lists. If packaging contains more than just one barcode (e.g. with mobile phones, electronic products, medical products) a CodeGate scanner is indispensable. The Voyager 9540 CodeGate function may be activated or deactivated easily by scanning a control barcode. Without ­CodeGate the Voyager 9540 is operated like the Voyager 9520.