... also function to achieve attendance. fingerprint reader module Features:·.High-definition color LCD display, the ... F4 function keys can be customized. fingerprint reader module Specifications: Fingerprint sensorOpticalCommunicationsTCP/IP or RS 232/485Function keys4 ... function, Real time monitoringAccess Control Interface forLock, door sensor, exit button, alarm, Door Bell, Anti-pass backWiegand ...