... Face, Face&PIN, Fingerprint only, RFID only..TCP/IP, RS232/485 communication and USB Host..3.0 inch TFT touch ... & ZKFinger10.0 Finger9.02000mAh Backup Battery: N/ACommunication: TCP/IP, RS232/485, USB HostAccess Control :Interfaces for3rd party electric lock, door ... 0.87 kgAppearance of DeviceFront View:Side View: Main Interface: Connection diagram:Regarding the Quality: we provide 100% 2 year guarantee ...