The GP03-reader is a peripheral reader module designed for the GPAY (GP03) terminal system. Its primary technical function is to facilitate user identification (typically via contactless RFID/NFC cards, key fobs, or tags) and securely transmit the captured data to the main control unit for authorization processing.
It is extensively utilized in automated access control and payment systems that demand secure and rapid verification. The reader module is physically integrated into the terminal panel or mounted adjacently, serving as the primary hardware interface for credential validation.