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ZKTeco F21 access controller has multi verification methods, camera function and record photo, 3000 fingerprint capacity, 5000 card capacity, 100000 transaction capacity, silkID fingerprint sensor, 2.4 inch TFT color screen, time attendance system, anti passback, 3rd party electric lock, door sensor, exit button, alarm and doorbell, photo ID, RS232/485 / TCP/IP / USB host communication.
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