Multi-level encryption alters the physical mode to prevent copying and cracking.

The Security Star product line, featuring hard encryption and a contact-based security shield, replaces the感应卡式万能手牌inductive card universal hand card, eliminating the possibility of duplication at its source. The Security Shield can perform emergency unlocking, set locks, retrieve unlock records, and provide emergency power to the locks.

Traditional intelligent locks and universal key cards are all carried by感应卡 (inductive cards). Universal key cards can open all locks within the venue. However, inductive cards can be quickly read and copied by dedicated equipment.

Especially in recent years, the theft by illegal duplication of万能手牌 has reached epidemic proportions.