{"product_id":"ajax-doorbell-4mp-smart-video-doorbell-pir-ai-black-9na-116886-125-bl3","title":"Ajax DoorBell (4 MP) – Smart Video Doorbell with AI, Hardware PIR \u0026 Dual-Path Backup Link (Black, 9NA)","description":"\u003ch4\u003eProduct Overview\u003c\/h4\u003e\n\u003cp\u003eThe \u003cb\u003eAjax DoorBell (4 MP)\u003c\/b\u003e (SKU: \u003cb\u003e116886.125.BL3\u003c\/b\u003e, 9NA region frequency) is a professional-grade wireless smart video doorbell engineered to provide complete visual control, access management, and intrusion deterrence at the front door. Combining an ultra-high-definition \u003cspan class=\"math-inline\"\u003e4 MP\u003c\/span\u003e (\u003cspan class=\"math-inline\"\u003e2688 x 1520 px\u003c\/span\u003e) CMOS sensor with High Dynamic Range (HDR) and an ultra-wide \u003cspan class=\"math-inline\"\u003e155°\u003c\/span\u003e horizontal field of view, it captures edge-to-edge situational awareness across porches, entry gates, and delivery drop zones.\u003c\/p\u003e\n\u003cp\u003eEngineered with dual-channel communication redundancy, Ajax DoorBell streams primary video over \u003cspan class=\"math-inline\"\u003e2.4 GHz\u003c\/span\u003e Wi-Fi (\u003cspan class=\"math-inline\"\u003e802.11 b\/g\/n\u003c\/span\u003e) while maintaining a secure fallback link with an Ajax Hub via proprietary Jeweller and Wings wireless radio protocols across open spaces up to \u003cspan class=\"math-inline\"\u003e1,700 meters\u003c\/span\u003e (\u003cspan class=\"math-inline\"\u003e5,550 ft\u003c\/span\u003e). Equipped with a hardware PIR motion sensor, edge AI-powered object classification (identifying humans, pets, and vehicles), two-way audio with active noise suppression and echo cancellation (G.722 codec), smart Infrared (IR) night vision up to \u003cspan class=\"math-inline\"\u003e6 meters\u003c\/span\u003e, and an internal rechargeable backup battery, it delivers perimeter security in an IP54 weather-sealed matte black finish.\u003c\/p\u003e\n\u003ch4\u003eKey System Features \u0026amp; Functionality\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eHigh-Definition 4 MP HDR Imaging:\u003c\/b\u003e Captures crisp \u003cspan class=\"math-inline\"\u003e2688 x 1520 px\u003c\/span\u003e video @ 25 fps with HDR multi-exposure balancing for high-contrast sunlight and shadow transitions.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eUltra-Wide \u003cspan class=\"math-inline\"\u003e155°\u003c\/span\u003e Field of View:\u003c\/b\u003e Expansive diagonal\/horizontal coverage ensures complete visibility of visitors from head to toe as well as doorstep delivery packages.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eDual-Layer Detection (Hardware PIR + Edge AI):\u003c\/b\u003e Integrates an optical PIR motion detector (up to \u003cspan class=\"math-inline\"\u003e4 m\u003c\/span\u003e \/ \u003cspan class=\"math-inline\"\u003e13 ft\u003c\/span\u003e) combined with on-device AI to distinguish people, animals, and vehicles, filtering out false alerts.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eWi-Fi + Jeweller\/Wings Fallback Link:\u003c\/b\u003e Connects via Wi-Fi for primary video streaming and maintains encrypted Jeweller\/Wings RF backup up to \u003cspan class=\"math-inline\"\u003e1,700 m\u003c\/span\u003e to deliver alarm signals during Wi-Fi interruptions.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eHigh-Fidelity Two-Way Audio:\u003c\/b\u003e Integrated microphone and loudspeaker with G.722 codec, active noise reduction, and echo cancellation for clear, delay-free visitor communication.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eSmart IR Night Vision up to 6 m:\u003c\/b\u003e Adaptive infrared backlight automatically regulates intensity based on distance to prevent overexposure on visitors' faces in complete darkness.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eFlexible Power \u0026amp; Battery Backup:\u003c\/b\u003e Operates on standard \u003cspan class=\"math-inline\"\u003e12-24 VDC\u003c\/span\u003e or \u003cspan class=\"math-inline\"\u003e16-24 VAC\u003c\/span\u003e transformer wiring (BellKit adapter included) with an integrated \u003cspan class=\"math-inline\"\u003e600 mAh\u003c\/span\u003e Li-Ion backup battery.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eAnti-Sabotage Tamper Defense:\u003c\/b\u003e SmartBracket mounting panel features an integrated tamper switch that immediately notifies the Ajax app and CMS if the unit is unlatched or detached.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"AJAX","offers":[{"title":"Default Title","offer_id":50790421758263,"sku":"116886.125.BL3","price":340.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/7790\/6743\/files\/500_2_555f1adb-6629-4247-8388-9e5209d9de7e.png?v=1787937432","url":"https:\/\/shop.gvs-usa.com\/products\/ajax-doorbell-4mp-smart-video-doorbell-pir-ai-black-9na-116886-125-bl3","provider":"gvsusa","version":"1.0","type":"link"}