... and good service.BTS-U160 Professional Fingerprint Time Attendance system (Color Screen)I. Product IntroductionU160 is a ... assure fingerprint matching consistency7. Accept ODM or OEM, providing system analysis, casing-making, circuit design, producing-assembly, package design, ... Version ZK new algorithm4. Hardware Platform: ZEM510 5. Operating System: Linux 6. Communications: RS232 ,RS485,TCP/IP, USB ...