The GR804M features a simple industrial design with horizontal/vertical mounting flexibility, adapting seamlessly to corridor walls, doorframes, and other installation scenarios. Equipped with a dual 2MP HDR camera, it captures faces accurately in challenging lighting conditions—including low light and strong backlighting. Integrated liveness detection blocks photo/video spoofing attacks to ensure secure access.

The device supports multiple authentication methods: offline facial recognition, PIN verification, and card-to-person matching. It also includes real-time stranger capture and tamper-proof alarm features. With dual wired/wireless network support, deployment is effortless—and core functions operate fully offline during network outages.

All data is processed and stored locally with no cloud transmission:

• Add/remove anonymous visitor cards via management card
• Configure access rules and whitelist directly on-device; export logs via USB
• Use PC software for bulk user management and attendance reporting
  This local architecture eliminates cloud data risks while meeting global privacy standards.

With reliable facial recognition capabilities, versatile installation options, and strict local data management, the GR804M has become the ideal access control solution for office buildings, campuses, hospitals, hotels, warehouses, public service centers, and other venues.