The Ajax DoorBell (Black), model number 66391.125.BL1, is a premium smart video doorbell that enhances home security and communication through advanced technology.

Equipped with a 4MP camera, it boasts a wide 155° viewing angle and HDR support for exceptional video quality, both day and night. Additionally, its infrared illumination reaches up to 20 feet, ensuring visibility even in low-light conditions.

Key technical specifications include:

• Wireless Connectivity: Operates on the 2.4 GHz Wi-Fi band, compatible with Wi-Fi standards 802.11b/g/n (Wi-Fi 4).
• AI Object Recognition: Integrated with a PIR motion sensor for precise movement detection, reducing false alerts.
• Clear Two-Way Audio: Features noise suppression and echo cancellation for optimal communication.

The mechanical button comes with LED indication and can trigger chimes through Ajax sirens or third-party chimes. Its housing is both waterproof and dust-resistant, making it suitable for outdoor use.

Additional features of the Ajax DoorBell include:

• ONVIF / RTSP support for video integration.
• Enhanced Wi-Fi range operating up to 1,600 ft in line-of-sight.
• Fallback communication channels and built-in backup battery for uninterrupted service.
• Tamper detection for added security against device tampering.
• Remote control via a mobile app with secure, multi-tiered account protection including 2FA and biometric login.
• Over-the-air firmware updates to ensure continuous improvements.
• Easy installation using SmartBracket and QR code scanning.

As part of the Ajax Systems ecosystem, it integrates seamlessly with other smart security, fire safety, and automation devices, all managed through a unified app interface.