It consists of 1pc Information card and 4pcs Record cards.

Information card
It is used to retrieve all information of PCB, including detailed parameter settings of lock, card type code, blacklist of card ID, status of lock etc. which plays a very important role in some special situation. For example, certain rooms have things stolen.

Record card
It is used to retrieve unlocking records from PCB, including the one by mechanical key and inner handle.