... guest card,master card,loss card etc, to execute rank management.RFID card 3. hotel key lock Packing:One piece per ... lock system A. System ConstructionONLENSE set of locks, computer, management software, Encoder, RF card, energy saving switch B. working theoryinstall ... . guest card,master card,loss card etc, to execute rank management. C. Multiple functions 1. Five levels of controlGeneral control, ...