Ajax DoorBell 4MP AI Video Doorbell – White (AJA-66390)

Description

Ajax DoorBell 4MP AI Video Doorbell – White brings intelligent entrance video into the Ajax security ecosystem, combining a 4MP HDR camera, PIR motion sensing, built-in AI and two-way voice communication in a single video doorbell.

The camera can identify people, animals and vehicles, helping make motion events more useful than simple image-change alerts. Users can open the live stream in Ajax apps, speak with a visitor and review recorded video when an archive service is configured. HDR processing helps preserve useful detail across changing lighting conditions around the entrance.

DoorBell connects primarily over 2.4 GHz Wi-Fi. When paired with a compatible Ajax hub, Jeweller and Wings can provide a backup communication channel for security events if Wi-Fi is unavailable. Recorded footage can be stored on an Ajax NVR on the same network or in Ajax Cloud Storage where the relevant subscription is active; DoorBell does not use a microSD card for local archive storage.

A permanent wired power supply is required: Ajax specifies 12–24 V DC or 16–24 V AC. The internal rechargeable battery is intended to maintain operation for short interruptions rather than replace the wired supply. This makes DoorBell best suited to a planned entrance installation where power and Wi-Fi coverage can be provided reliably.

Choosing the right Ajax model

DoorBell works best as part of a planned Ajax entrance-security setup rather than as a standalone smart doorbell. Pairing it with an Ajax hub adds a backup communication path for security events, while an Ajax NVR or Cloud Storage provides the video archive. That combination keeps visitor video, motion events and the wider alarm system in the same Ajax app environment.

Because there is no microSD card slot, the recording method should be decided before installation. Likewise, the built-in rechargeable battery is for short power interruptions rather than normal cordless operation, so reliable wired power and good 2.4 GHz Wi-Fi coverage remain important installation considerations.

Key Features

• 4MP HDR video doorbell
• PIR motion sensor with built-in AI
• Recognition of people, animals and vehicles
• Two-way voice communication through Ajax apps
• 2.4 GHz Wi-Fi connection
• Optional Ajax hub backup communication
• Recording to Ajax NVR or Ajax Cloud Storage
• 12–24 V DC or 16–24 V AC wired power
• Short-term rechargeable battery backup
• No microSD card slot