Manufacturer Specifications Primary Function: Terminal Fingerprint Scanner for Businesses Operating system compatibility: Windows XP, Vista, Windows7 Registered Fingerprint Capacity: 2,000 Transaction Capacity: 50,000 Verification Mode: 1:1 or 1:N Terminal Communication Method: TCP/IP Display Type: 128x64 LCD with backlight Identification Speed: <= 2 seconds FRR (False Rejection Ratio): <0.01% FAR (False Acceptance Ratio) <0.0001% Operating Environment: - Temperature: 0 to 45 C - Humidity: 20% - 80% Power Source: Cord and plug with internal battery backup Languages: English, Japanese, Simplified Chinese, Spanish, Traditional Chinese Certification: CE, UKAS, ISO 9001:2000 Dimensions: L:140 x W:90 x D:50 (mm) Fingerprint Time Clock and Recorder to be used as a business clocking in/out system for employees. No more cards, no more paperwork, no more hassle! This digital fingerprint access terminal and data logger registers finger prints for time management and can also work as an authorized personnel access device (door unlocking) when attached to electronic doors. The purpose of this device is to help employers and employees more easily record daily time worked. This model fingerprint time attendance unit helps companies to manage attendance records more easily (it comes with professional attendance software that lets you create different shifts, set holidays, and automatically create attendance reports showing who came late or left early, who took vacation, etc.) while allowing for company hourly and contract workers to more quickly Punch IN/Punch OUT while also not having to rely on inconvenient ID card systems (you can forget or lose a card, but you can"t lose your finger!).