Each token pre-programmed with unique ID which is printed on it，only readable
Each comes with Key ring included
Compatible with all RFID reader to gain access
No external power required.
Brand new key inductive card for entrance guard system.
TK4100 completely compatible with EM4100,they can replace each other fully.
It applies to access control, hotel locks, staff attendance and school campus access and payment control, identification and security systems, parking lot entry and payment, social security management, transportation payment, municipal and ancillary service payment.