{"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":"The SK-DUCT-W and DNRW use photoelectric technology to detect smoke and combustion particles present in air moving through an HVAC air handling system.\n\nThese units sense smoke in the most challenging conditions, operating in airflow speeds of 100 to 4,000 feet per minute (0.5 – 20.32 m\/s), temperatures of -4°F – 158°F (-20°C –70°C), and a humidity range of 0 – 93 percent (non-condensing).\n\u003ch4\u003e\u003cstrong\u003eMain Features\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003ePhotoelectric, integrated low-flow technology\u003c\/li\u003e\n  \u003cli\u003eAir velocity rating from 100 ft\/min – 4,000 ft\/min (0.5 m\/s – 20.32 m\/s)\u003c\/li\u003e\n  \u003cli\u003eVersatile mounting options: square or rectangular configuration\u003c\/li\u003e\n  \u003cli\u003eBroad ranges for operating temperature (- 4°F – 158°F, -20°C – 70°C) and humidity (0% – 93% non-condensing)\u003c\/li\u003e\n  \u003cli\u003eSampling tube installs from front or back of the detector with no tools required\u003c\/li\u003e\n  \u003cli\u003eCover tamper signal\u003c\/li\u003e\n  \u003cli\u003eIncreased wiring space with a newly added 3\/4\" conduit knockout\u003c\/li\u003e\n  \u003cli\u003eEasily accessible code wheels on sensor head (included with SK-DUCT-W)\u003c\/li\u003e\n  \u003cli\u003eClear cover for convenient visual inspection (SK-DUCT-W only)\u003c\/li\u003e\n  \u003cli\u003eRemote testing capability\u003c\/li\u003e\n  \u003cli\u003eRequires com line power only\u003c\/li\u003e\n  \u003cli\u003eHousing accommodates an addressable relay module, sold separately, for applications requiring a Form-C relay\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Silent Knight","offers":[{"title":"Default Title","offer_id":43247305031745,"sku":"SK-SKDUCTW","price":291.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0700\/2465\/9009\/files\/b57c3bf3-sk-skductw_lg.jpg?v=1770769541","url":"https:\/\/www.fireandsafetyplus.com\/products\/silent-knight-sk-duct-w-intelligent-photoelectric-duct-smoke-detector-smoke-detector-housing-and-sk-photo-r-w-detector","provider":"Fire and Safety Plus","version":"1.0","type":"link"}