Exit gate is a solution used to control the flow of customers exiting the self-checkout area. EG Retail uses exit gates from CheckMark and ITAB. For ITAB, there is a integration for a unique barcode so that it can only be used once.
By using exit gate you can prevent unauthorized exit or theft by ensuring that only customers who have completed their transaction can leave. Some exit gates are equipped with scanners or sensors to verify that all items have been scanned and paid for.
Exit gate example