... Operating system: Linux Communications: RS23 This kind of fingerprint access device features: 1. User Capacity: 2200,2. Transaction Storage: 800003. Operating ... system: Linux 4. Communications: RS232 ,RS485,TCP/IP( Standard ) USB-DEVICE 5. Identification time:≤2S,FAR≤0.0001%, FRR≤1% 6 ... . LED: Red,Green, LCD:128X64 Blue background light 7. Operating Temperature:0°C-45°C,8. Operating Humidity ...