Card Reader. 125 kHz (Proximity EM Card). Wiegand interface supported. Support RS-485 (9600bps) communication type. Red / Green / Blue LED and Beeper with auto / user mode setup. Wiegand 26 bits. IP66. Gray. RS485 interface only supports GeoVision controllers, while Wiegand interface supports both GeoVision and 3rd party controllers (Wiegand 26 Bits).