Top 5 Biometric Time and Attendance Clocks Icon Time System\\'s Small Business Biometric Time Clock. Our first product comes from Icon Time Systems. U160-C Biometric Fingerprint Attendance Time Clock. Lathem FR650 Facial Recognition Attendance System. Acroprint FaceVerify Facial Recognition Time and Attendance System. Anviz Oc180 Wall Mount Fingerprint Timeclock.