Simple and convenient operation method. Easy installation. Safe and reliable, Soft keypads, Compact design, High performance, User-friendly, Accurate algorithms with low FAR and FRR rates, Identification speed obviously improved, Processes 2, 000 fingerprint, No matter good or poor, Within 0.7 second, Alarm for invalid time attendance and repetitious, Be equipped with system of calendar and is on an equal footing with PC Sensor window cotton improves image quality, Accepts dry, Wet fingers Adjust image distortion, Assure fingerprint matching consistency.