4-door biometric controller. Supports 4 Wiegand readers and 8 RS-485 readers. TCP / IP and RS-485 communication. Up to 12 inputs: 4 request-to-exit buttons, 4 door sensors, 4 auxiliary inputs. Up to 8 outputs: 4 relays for locks, 4 auxiliary relays. Wiegand and RS-485 input for FR1200 and FR1500 series readers. Stores up to 3,000 fingerprints (optionally 20,000), 30,000 cards and 100,000 events. 26-bit Wiegand compatible readers and RS485 FR series readers. Compatible with ZKBioaccess program. Power supply: 9.6 to 14.4 Vdc. Operating temperature: 0 to 45ºC.