{"product_id":"ajax-dualcurtain-outdoor-bi-directional-wireless-motion-detector-white-9na-28273-81-wh3","title":"Ajax DualCurtain Outdoor (Jeweller) – Bi-Directional Wireless Outdoor Curtain Motion Detector (White, 9NA)","description":"\u003ch4\u003eProduct Overview\u003c\/h4\u003e\n\u003cp\u003eThe \u003cb\u003eAjax DualCurtain Outdoor Jeweller\u003c\/b\u003e (SKU: \u003cb\u003e28273.81.WH3\u003c\/b\u003e, 9NA region frequency) is a bi-directional wireless outdoor curtain motion detector engineered to secure property perimeters, long exterior facades, windows, and perimeter boundaries up to \u003cspan class=\"math-inline\"\u003e30 meters\u003c\/span\u003e (\u003cspan class=\"math-inline\"\u003e100 ft\u003c\/span\u003e) in total length (\u003cspan class=\"math-inline\"\u003e15 meters\u003c\/span\u003e per side). Featuring two independent optical systems pointing in opposite directions, it enables precise, independent detection range adjustments (\u003cspan class=\"math-inline\"\u003e4 to 15 meters\u003c\/span\u003e) and custom sensitivity tuning for each side.\u003c\/p\u003e\n\u003cp\u003ePowered by a four-sensor PIR array and proprietary ELSA (Extended Live Signal Analysis) multi-stage digital signal processing, DualCurtain Outdoor effectively filters out thermal noise, moving foliage, and pets. Operating over the encrypted Jeweller wireless radio protocol across open-space distances up to \u003cspan class=\"math-inline\"\u003e1,700 meters\u003c\/span\u003e (\u003cspan class=\"math-inline\"\u003e5,500 ft\u003c\/span\u003e), the device features Near-Area Detection technology to cover blind spots directly beneath the sensor, Grade 3 active anti-masking protection, an IP54 weatherproof enclosure, and up to 4 years of autonomous battery life on pre-installed CR123A lithium batteries in a clean matte white finish.\u003c\/p\u003e\n\u003ch4\u003eKey System Features \u0026amp; Functionality\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eBi-Directional Perimeter Shield:\u003c\/b\u003e Two independent optical systems protect opposite directions simultaneously with total coverage reaching up to \u003cb\u003e\u003cspan class=\"math-inline\"\u003e30 meters\u003c\/span\u003e\u003c\/b\u003e (\u003cspan class=\"math-inline\"\u003e15 meters\u003c\/span\u003e \/ \u003cspan class=\"math-inline\"\u003e50 ft\u003c\/span\u003e per side).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eIndependent Side Calibration:\u003c\/b\u003e Detection distance (\u003cspan class=\"math-inline\"\u003e4-15 m\u003c\/span\u003e), sensitivity levels, and detection modes can be configured separately for the left and right sides.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eNear-Area Detection Technology:\u003c\/b\u003e Patented downward-pointing optical beam eliminates the traditional blind spot directly beneath the sensor to prevent intruders from crawling underneath.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eELSA Correlation Signal Processing:\u003c\/b\u003e Real-time digital signal analysis compares data from all 4 PIR sensors to distinguish human intruders from pets and natural environmental disturbances.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eGrade 3 Active Anti-Masking:\u003c\/b\u003e Continuous optical IR scanning detects attempts to paint, tape, obstruct, or place obstacles in front of the lenses day and night.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eEncrypted Jeweller RF Link:\u003c\/b\u003e Two-way encrypted radio communication operates up to \u003cb\u003e\u003cspan class=\"math-inline\"\u003e1,700 meters\u003c\/span\u003e\u003c\/b\u003e (\u003cspan class=\"math-inline\"\u003e5,500 ft\u003c\/span\u003e) in open space with frequency hopping anti-jamming protection.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eWeatherproof IP54 Housing:\u003c\/b\u003e Sealed, UV-resistant enclosure operates reliably in extreme temperatures ranging from \u003cspan class=\"math-inline\"\u003e-25°C to +60°C\u003c\/span\u003e (\u003cspan class=\"math-inline\"\u003e-13°F to +140°F\u003c\/span\u003e).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"AJAX","offers":[{"title":"Default Title","offer_id":49746128830775,"sku":"28273.81.WH3","price":201.51,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/7790\/6743\/files\/500_3_92caae57-ab34-4330-95be-fc1d3dd3ab81.png?v=1787773950","url":"https:\/\/shop.gvs-usa.com\/products\/ajax-dualcurtain-outdoor-bi-directional-wireless-motion-detector-white-9na-28273-81-wh3","provider":"gvsusa","version":"1.0","type":"link"}