1,Overview     The T800M includes RS232 and RS485 connections. It can be used as a whole products, and also as a chip-set module without casing, suitable for integration into any other equipment. It includes an antenna, LEDs and a buzzer. All the Mifare cards can be read and written. The ISO 14443 type A and B cards can also be accessed on request. It also can be used parking-meter, door-control, transportation, oil-control, access control identifications. 2,Technical specifications