{"product_id":"silent-knight-sk-duct-w-intelligent-photoelectric-duct-smoke-detector-smoke-detector-housing-and-sk-photo-r-w-detector","title":"Silent Knight SK-DUCT-W Intelligent Photoelectric Duct Smoke Detector, Smoke Detector Housing and SK-PHOTO-R-W Detector","description":"\u003cp data-pm-slice=\"1 3 []\"\u003e\u003cspan\u003eThe SK-DUCT-W Intelligent Addressable Photoelectric Duct Smoke Detector is designed to detect smoke and combustion particles in air moving through HVAC ductwork. Featuring advanced photoelectric sensing technology, integrated low-flow detection, and a wide operating airflow range, this detector provides reliable smoke monitoring for compatible commercial and institutional fire alarm systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDesigned for HVAC applications, the SK-DUCT-W operates in air velocities ranging from 100 to 4,000 feet per minute (0.5–20.32 m\/s). Its photoelectric sensing technology monitors sampled duct air for smoke particles, helping compatible fire alarm control systems identify potentially hazardous conditions within air-handling equipment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe detector supports operating temperatures from -4°F to 158°F (-20°C to 70°C) and relative humidity levels from 0% to 93%, non-condensing. These operating specifications provide flexibility across a variety of approved HVAC installations.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe SK-DUCT-W features a versatile housing that supports square or rectangular mounting configurations. Its sampling tube can be installed from the front or rear of the housing without tools, helping simplify installation and maintenance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA clear housing cover allows convenient visual inspection of the internal detector, while the cover tamper signal supports monitoring of unauthorized or improper cover removal.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe housing includes an additional 3\/4-inch conduit knockout and expanded wiring space to simplify electrical connections. Accessible rotary address wheels on the detector head support efficient configuration within compatible addressable fire alarm systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eRemote testing capability provides convenient maintenance access, allowing authorized personnel to test supported detector functions through compatible system equipment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe SK-DUCT-W assembly includes the duct detector housing and an SK-PHOTO-R-W photoelectric detector, providing an integrated solution for intelligent HVAC duct smoke detection.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e10 Key Features\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003col data-spread=\"false\" start=\"1\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eIntelligent Photoelectric Smoke Detection:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Uses photoelectric technology to detect smoke particles in air moving through HVAC ducts.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eWide Airflow Operating Range:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Supports duct air velocities from 100 to 4,000 feet per minute.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eIntegrated Low-Flow Technology:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Designed to maintain smoke detection performance across supported low-airflow conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBroad Operating Temperature Range:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Supports environmental temperatures from -4°F to 158°F (-20°C to 70°C).\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eHigh Humidity Tolerance:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Operates within a specified 0–93% relative humidity range, non-condensing.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eFlexible Mounting Configuration:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Supports square or rectangular housing arrangements for compatible duct installations.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eTool-Free Sampling Tube Installation:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Allows sampling tube insertion from the front or rear of the housing.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eClear Inspection Cover:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Provides convenient visual access to the detector assembly during routine inspection.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCover Tamper Monitoring:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Supports reporting of the detector housing cover tamper condition.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eRemote Testing Capability:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Supports remote detector testing through compatible fire alarm system equipment.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Silent Knight by Honeywell","offers":[{"title":"Default Title","offer_id":68458862084317,"sku":"kaybee-SK-DUCT-W","price":553.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0834\/9912\/2909\/files\/SK-DUCT-W-1.jpg?v=1793979857","url":"https:\/\/kaybeesecurity.com\/products\/silent-knight-sk-duct-w-intelligent-photoelectric-duct-smoke-detector-smoke-detector-housing-and-sk-photo-r-w-detector","provider":"Kaybee Security","version":"1.0","type":"link"}