Colorful 2.8" TFT screen with user-friendly interface, DL Time Management Software included, Standalone device, Easy USB downloads for data and records, Fingerprint/password/ID card (optional) punch, Variable security threshold, Fingerprint capacity: 3,000, Transaction storage: 50,000 log records, Communication: RS485, TCP/IP, USB, Verification: 1:1 or 1:N, FAR < 0.0001%, FRR < 1%, Matching speed:1 second, Language: English, Chinese, Japanese, Spanish, Operating voltage: DC 9V, Operating temperature: 0 ~ 110 oF, Backup battery(optional)