With Face algorithm and large capacity memory. Integrating a high-speed processor and a high-definition infrared camera enables users to identify in dark environments. Face and fingerprint multi-biometric identification methods will be more widely used. All operations are designed to be performed on the 4.3-inch TFT touch screen, and the identification methods include face/fingerprint/password Elegant ergonomic design, 4.3 TFT touch screen, user-friendly and very intuitive 6 user-defined function keys, contact relays for access control (connect wires to door lock or 3rd panel) Optional retractable timer chime, infrared optical system can identify users in low-light environment, built-in backup battery can run continuously for about 4 hours.