AJAX SURVEILLANCE Doorbell (Requires Ajax Hub)

Professional security at the front door
DoorBell combines the convenience of a smart doorbell with high-end security and video surveillance. When someone rings the doorbell, users can speak to visitors instantly, with no lags or delays. Equipped with a PIR sensor and built-in AI, DoorBell accurately detects movement and recognizes people, animals, and vehicles. Users can always get a clear, high-quality view of activity at their front door thanks to the doorbell’s wide-range HDR camera.

Specifications

Video Stream

• Camera: 4 MP CMOS sensor

• Resolution: up to 2688 × 1520 px

• Viewing angles: horizontal 155°, vertical 90°

• Video protocol: JetSparrow (fast and encrypted peer‑to‑peer protocol developed by Ajax Systems)

• Storage options: NVR, Ajax Cloud Storage

• Video codec: H.264

• Dynamic range: HDR (improves details in bright/dark scenes)

Communication

• Wi‑Fi: 802.11 b/g/n module, 2.4 GHz, up to 2 Mbit/s

• Jeweller and Wings: proprietary wireless communication technologies for backup (commands, alarms, events, photo verification)

• Key features: Two‑way communication with clear and loud voice between users and visitors

Motion & Object Detection

• Motion detection: built‑in PIR sensor + software image frame analysis

• Object detection (AI): people, pets, vehicles

• Smart IR illumination: up to 6 m, auto intensity adjustment in real time to prevent overexposure

• Visual verification: Ajax detectors can trigger camera recording, sending results to monitoring apps

• ONVIF support: Profile S (full), Profile T (partial); allows integration into third‑party VMS

Audio

• Microphone: for two‑way communication and recording

• Audio codec: G722

• Audio processing: always‑active noise suppression and echo cancellation

PIR Detection

• Sensitive elements: 1 × PIR sensor

• Detection distance: up to 4 m (depends on sensitivity settings)

• Detection angles: horizontal 120°, vertical 100°

• Sensitivity: 3 adjustable levels (via Ajax apps by PRO/admin)

• Installation recommendation: mount at 1.2–1.5 m height; suitable for outdoor/indoor use; avoid direct sunlight (may overheat)

Sabotage Protection & Security

• Tamper alarm: notifies attempts to remove from mounting panel

• Holding screw: secures device on SmartBracket

• mTLS: encrypted connection for data protection

• Authentication: via Ajax Cloud (no local access rights)

• Secure Boot: prevents firmware spoofing

• OTA signature verification: ensures secure firmware updates

• Privacy: access rights managed in apps and PRO Desktop

• Communication loss detection: Wi‑Fi (configurable from 30 s); Jeweller/Wings (36 s; depends on settings)

Power Supply

• Device power consumption: 10 W

• Main DC voltage: 12–24 V⎓

• Main AC voltage: 16–24 V~, 50/60 Hz

• Minimum current:

  • Without wired chime: 1 A (12 V⎓); 0.5 A (24 V⎓); 0.6 A (16 V~); 0.4 A (24 V~)

  • With wired chime: 3 A (12 V⎓); 3 A (24 V⎓); 0.6 A (16 V~); 0.4 A (24 V~)

• Battery: built‑in Li‑ion 600 mAh (heats device in cold climate, backup for short periods)

• Power recommendations: with BellKit + wired chime, stronger supply required: 12–24 V⎓, ≥3 A or 16–24 V~, ≥10 VA

Enclosure

• Dimensions: 145 × 47 × 34 mm

• Weight: 163 g

• Operating temperature: −25 °C to +60 °C

• Operating humidity: up to 90%

• Protection class: IP54