Special design for mounting on metal 

Standard wiegand 26 bits / 34 bits / RS232 for connection to access control panels

Proprietary wiegand 26-64 bits output with even odd parity

check from any readable block in Mifare card. Key A authentication

RS-232 interface with baud rate : 9600, data bits : 8,

stop bit :1, parity : N for connection to PC / microcontrollers