Zkteco F22 wi-fi ultra thin fingerprint time attendance has 2.4-inch TFT color screen and touch keys, ultra thin elegant design, anti-passback, access control interface for 3rd party electric lock, door sensor, exit button, alarm, standard wi-fi, TCP/IP or RS485 network interface, built-in auxiliary input with enhanced flexibility, multiple verification modes, 158.5 x 78.0 x 19.4mm dimension.