... is a keypad non-contact proximity card access control reader of metal, for different card chip,can support EM, HID, MIFARE ... three kinds of proximity cards optional, is one of the most advanced access control reader, using a unique metal design, smart keypad ... number is 3 bytes. When using the keypad:wiegand interface of D0 andD1 will out put Wga4 format ,as below: ...