The AIFACE MARS+QR is a biometric access control system with a 5-inch touch screen. It supports face, QR code, card, and password methods, allowing quick and easy access. The device can store up to 6,000 face templates and 10,000 card templates. It features a 2MP camera and supports communication through TCP/IP, Wi-Fi, and more. With QR code scanning, it provides a fast, secure, and efficient way to control access in under 1 second. It works with em locks, door sensors, and alarms for secure access control.