ZKTeco F19 biometric fingerprint access control device has 3000 fingerprint capacity, 30000 transaction capacity, TCP/IP, RS-232, and RS-485 communication, output and input access control interface for 3rd party electric lock, exit button, alarm, TFT LCD color screen display, web server, anti-passback standard function, ID card / Mifare card function, ZK optical sensor with adapter, and 87 x 195 x 42.5mm dimension.