RF card of ADEL has independent intellectual property rights; Multiple independent encryption ensures not been deciphered, copying, data tampering, Global uniqueness and high confidentiality; Easy to operate, place on the front induction zone of the lock to open; Coil sealed inside the card, less susceptible to external influences; No mechanical contact between the RF card reader and to avoid various failures; Printable the stylish promotional pattern on the card, which can effectively work as advertising; Coding inside the card is divided into 16 separate zones, each area has a separate password, can be applied to different systems, such as hotel consumption system, parking system, attendance system; Different passwords and access conditions can be based on a different set of applications, each partition can be independently managed.