What is the Ajax 4MP Video doorbell with built-in AI & PIR sensor
It’s a video doorbell with AI-based object recognition, a PIR motion sensor, two-way voice communication, built-in camera + IR illumination for low light.
Can be connected via Wi-Fi (2.4 GHz) as the main network, and when paired with an Ajax hub, has backup via their Jeweller and Wings wireless/radio protocols.
Key Features
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Camera: 4 MP HDR, wide field of view (≈ 155° horizontal, 90° vertical) - IR / Night Vision: Smart IR illumination for dark / low-light; approx up to ~6 m range
- Motion & Object Detection: Uses PIR plus AI recognition to distinguish people, vehicles, animals.
- Audio / Two-Way Comm: Microphone + speaker, noise suppression & echo cancellation.
- Power / Wiring: It supports external power supply (12-24 V DC or 16-24 V AC at 50/60 Hz). Has a backup battery for short outages.
- Weather / Durability: Outdoor-rated (IP54); works in a range of temperatures (e.g. −25 °C to +60 °C) in cited reviews/specs.
- Installation options: Can be mounted with a flat surface bracket (SmartBracket), and there are wedge brackets to adjust angle (tilt up/down, swivel left/right). Includes tamper detection (if someone tries to remove it).
- Video storage / integration: Videos can be stored locally via an Ajax NVR, or archive to cloud (subscription). Supports ONVIF authorization so can integrate with 3rd-party video management systems. Downloads of recordings include digital signature to verify integrity.
Things to Keep in Mind / Requirements
Must use a 2.4 GHz Wi-Fi network.
For powering wired chimes (if you have old mechanical/digital chime), minimum current/power need to be sufficient. If the chime is connected, the current requirement increases. Also there are limits on cable resistance and length depending on wire gauge.
Signal strength (WiFi &, if applicable, Jeweller/Wings) is important. If the signal is weak or obstructed, performance may degrade.
Mounting height recommendation: 1.2-1.5 metres above the ground for optimal view and sensor coverage.