{"product_id":"osi-ri-fh-silent-knight-reflective-beam-smoke-detector-intelligent-addressable-328-ft-range","title":"OSI-RI-FH | Silent Knight Reflective Beam Smoke Detector, Intelligent Addressable, 328 ft Range","description":"\u003ch4\u003eDescription \u003c\/h4\u003e\n\u003cp data-end=\"396\" data-start=\"144\"\u003eThe Silent Knight OSI-RI-FH is an intelligent, addressable single-ended reflective beam smoke detector designed for large open areas with high ceilings. Operating on the principle of infrared light obscuration, it ensures reliable smoke detection where spot detectors are impractical. This unit integrates a combined transmitter\/receiver design and is compatible with IFP and Farenhyt Series Black fire alarm control panels in IDP mode.\u003c\/p\u003e\n\u003cp class=\"\" data-end=\"574\" data-start=\"284\"\u003e \u003c\/p\u003e\n\u003cp class=\"\" data-end=\"574\" data-start=\"284\"\u003e \u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications \u003c\/h4\u003e\n\u003ctable style=\"width: 99.9988%; height: 411.615px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.6007px;\"\u003e\n\u003ctd style=\"width: 22.6161%; height: 19.6007px;\"\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.245%; height: 19.6007px;\"\u003eNew\/Never Used Surplus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6007px;\"\u003e\n\u003ctd style=\"width: 22.6161%; height: 19.6007px;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.245%; height: 19.6007px;\"\u003eSilent Knight (Honeywell Farenhyt Series)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6007px;\"\u003e\n\u003ctd style=\"width: 22.6161%; height: 19.6007px;\"\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.245%; height: 19.6007px;\"\u003eFire Safety\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6007px;\"\u003e\n\u003ctd style=\"width: 22.6161%; height: 19.6007px;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.245%; height: 19.6007px;\"\u003eOSI-RI-FH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6007px;\"\u003e\n\u003ctd style=\"width: 22.6161%; height: 19.6007px;\"\u003e\u003cstrong\u003eSubcategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.245%; height: 19.6007px;\"\u003eBeam Smoke Detectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6007px;\"\u003e\n\u003ctd style=\"width: 22.6161%; height: 19.6007px;\"\u003e\u003cstrong\u003eDetection Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.245%; height: 19.6007px;\"\u003eReflective linear optical beam with infrared light obscuration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6007px;\"\u003e\n\u003ctd style=\"width: 22.6161%; height: 19.6007px;\"\u003e\u003cstrong\u003eDesign\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.245%; height: 19.6007px;\"\u003eCombined transmitter\/receiver unit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6007px;\"\u003e\n\u003ctd style=\"width: 22.6161%; height: 19.6007px;\"\u003e\u003cstrong\u003eField of View\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.245%; height: 19.6007px;\"\u003e12° wide angle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6007px;\"\u003e\n\u003ctd style=\"width: 22.6161%; height: 19.6007px;\"\u003e\u003cstrong\u003eBeam Adjustment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.245%; height: 19.6007px;\"\u003e50° horizontal, 20° vertical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6007px;\"\u003e\n\u003ctd style=\"width: 22.6161%; height: 19.6007px;\"\u003e\u003cstrong\u003eDetection Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.245%; height: 19.6007px;\"\u003e16–328 ft (5–100 m) standard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6007px;\"\u003e\n\u003ctd style=\"width: 22.6161%; height: 19.6007px;\"\u003e\u003cstrong\u003eSensitivity Setting\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.245%; height: 19.6007px;\"\u003eAutomatic threshold level setting\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6007px;\"\u003e\n\u003ctd style=\"width: 22.6161%; height: 19.6007px;\"\u003e\u003cstrong\u003eCompensation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.245%; height: 19.6007px;\"\u003eDrift compensation for dust and aging\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6007px;\"\u003e\n\u003ctd style=\"width: 22.6161%; height: 19.6007px;\"\u003e\u003cstrong\u003eImmunity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.245%; height: 19.6007px;\"\u003eResistant to sunlight, movement, and object intrusion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6007px;\"\u003e\n\u003ctd style=\"width: 22.6161%; height: 19.6007px;\"\u003e\u003cstrong\u003eBuilt-In Features\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.245%; height: 19.6007px;\"\u003eImager heater for stable operation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6007px;\"\u003e\n\u003ctd style=\"width: 22.6161%; height: 19.6007px;\"\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.245%; height: 19.6007px;\"\u003eIFP Series and Farenhyt Series Black fire alarm panels (IDP mode)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6007px;\"\u003e\n\u003ctd style=\"width: 22.6161%; height: 19.6007px;\"\u003e\u003cstrong\u003eCertifications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.245%; height: 19.6007px;\"\u003eUL Listed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6007px;\"\u003e\n\u003ctd style=\"width: 22.6161%; height: 19.6007px;\"\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.245%; height: 19.6007px;\"\u003eWarehouses, hangars, arenas, malls, large halls\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6007px;\"\u003e\n\u003ctd style=\"width: 22.6161%; height: 19.6007px;\"\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.245%; height: 19.6007px;\"\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6007px;\"\u003e\n\u003ctd style=\"width: 22.6161%; height: 19.6007px;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.245%; height: 19.6007px;\"\u003e0.2 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eInformation About OSI-RI-FH\u003c\/h4\u003e\n\u003cp\u003eThe OSI-RI-FH is part of the Honeywell Farenhyt Series, offering advanced protection for warehouses, aircraft hangars, arenas, malls, and other expansive spaces. Its reflector-type linear beam design enables coverage up to 328 feet without the need for separate long-range kits. Built with automatic sensitivity adjustment, drift compensation, and a built-in imager heater, it maintains consistent performance even in environments with building movement or challenging conditions. With wide-angle beam adjustment and fast alignment capability, the OSI-RI-FH simplifies installation and ensures long-term stability in demanding applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInfrared Beam Detection: Operates on light obscuration for effective smoke detection in large open spaces.\u003c\/li\u003e\n\u003cli\u003eCombined Unit Design: Single transmitter\/receiver configuration reduces installation complexity.\u003c\/li\u003e\n\u003cli\u003eLong-Range Coverage: Standard detection range from 16 ft to 328 ft (5–100 m).\u003c\/li\u003e\n\u003cli\u003eAutomatic Sensitivity Setting: Simplifies setup while ensuring optimal detection accuracy.\u003c\/li\u003e\n\u003cli\u003eDrift Compensation: Maintains reliable performance by adjusting for dust and environmental changes.\u003c\/li\u003e\n\u003cli\u003eBuilt-In Imager Heater: Provides stable operation in temperature-varying conditions.\u003c\/li\u003e\n\u003cli\u003eFlexible Alignment: 50° horizontal and 20° vertical adjustment with a 12° field of view.\u003c\/li\u003e\n\u003cli\u003eResistant to Interference: Designed to minimize false alarms from sunlight, movement, or foreign objects.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe OSI-RI-FH delivers the reliability and precision required for smoke detection in large-scale, high-ceilinged facilities.\u003c\/p\u003e","brand":"Silent Knight","offers":[{"title":"Default Title","offer_id":49105184489728,"sku":"OSI-RI-FH","price":2418.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0388\/5331\/2557\/files\/OSI-RI-FH.jpg?v=1785542070","url":"https:\/\/alotechparts.com\/products\/osi-ri-fh-silent-knight-reflective-beam-smoke-detector-intelligent-addressable-328-ft-range","provider":"Alo Tech Solutions","version":"1.0","type":"link"}