- KTT COL0400 self-service barcode scanning and wine system is an all-in-one system for customers a full-featured self-service wine solution. Easy is included in the plan. Poure System comes with the function of scanning the code to pay for the wine, while saving two faucets, straight pick up the wine and keep the cost to a minimum. - KTT COL0400 self-service scanning and wine making system has added a built-in drop-off function cylinder space and built-in ice water spray cup system. Provide customers with one-stop high quality drinking experience