Face Recognition Technology, this biometric time clock combines state of the art biometric technology with secure, reliable data management. RFID Card/Badge reader terminal equipped allows your company to use your existing RFID cards. Identification modes include facial recognition,proximity card/FOB and PIN w/password. Includes a 4.3″ LCD touch scree, 6 User-defined function keys, relays for door access control, relay contact for external scheduled bell, built-in battery backup provides approx. 4 hours of continuous operation.