... its default identification mode is Fingerprint & Face, additionally, as it is a kind of professional access control facial device, it may ... &Face, Face&PIN, Fingerprint only, RFID only.TCP/IP, RS232/485 communication and USB Host.3.0 inch ... ZKFinger10.0/ZKFinger9.02000mAh Backup BatteryN/ACommunicationTCP/IP, RS232/485, USB HostAccess ControlInterfaces for3rd party electric lock, door sensor, alarm, ...