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.—Video StreamCamera: 4 MP CMOS sensorResolution: up to 2688 × 1520 pxViewing angles: horizontal 155°, vertical 90°Video protocol: JetSparrow (fast and encrypted peer‑to‑peer protocol developed by Ajax Systems)Storage options: NVR, Ajax Cloud StorageVideo codec: H.264Dynamic range: HDR (improves details in bright/dark scenes)CommunicationWi‑Fi: 802.11 b/g/n module, 2.4 GHz, up to 2 Mbit/sJeweller 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 visitorsMotion & Object DetectionMotion detection: built‑in PIR sensor software image frame analysisObject detection (AI): people, pets, vehiclesSmart IR illumination: up to 6 m, auto intensity adjustment in real time to prevent overexposureVisual verification: Ajax detectors can trigger camera recording, sending results to monitoring appsONVIF support: Profile S (full), Profile T (partial); allows integration into third‑party VMSAudioMicrophone: for two‑way communication and recordingAudio codec: G722Audio processing: always‑active noise suppression and echo cancellationPIR DetectionSensitive elements: 1 × PIR sensorDetection 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 & SecurityTamper alarm: notifies attempts to remove from mounting panelHolding screw: secures device on SmartBracketmTLS: encrypted connection for data protectionAuthentication: via Ajax Cloud (no local access rights)Secure Boot: prevents firmware spoofingOTA signature verification: ensures secure firmware updatesPrivacy: access rights managed in apps and PRO DesktopCommunication loss detection: Wi‑Fi (configurable from 30 s); Jeweller/Wings (36 s; depends on settings)Power SupplyDevice power consumption: 10 WMain DC voltage: 12–24 V⎓Main AC voltage: 16–24 V~, 50/60 HzMinimum 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 VAEnclosureDimensions: 145 × 47 × 34 mmWeight: 163 gOperating temperature: −25 °C to 60 °COperating humidity: up to 90%Protection class: IP54—
