{"product_id":"silent-knight-sk-duct-w","title":"Silent Knight SK-DUCT-W Duct Smoke Detector Housing","description":"\u003cp\u003eSilent Knight SK-DUCT-W Duct Smoke Detector Housing.\u003c\/p\u003e\n\u003ch3\u003eCompliance\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUL Listed\u003c\/li\u003e\n\u003cli\u003eFM Approved\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eHousing accepts SK-protocol addressable detector heads for HVAC duct installation\u003c\/li\u003e\n\u003cli\u003eAirflow sampling range 100 to 4,000 ft\/min (0.5 to 20.3 m\/s)\u003c\/li\u003e\n\u003cli\u003eHumidity range 0% to 93%\u003c\/li\u003e\n\u003cli\u003eWeight 1.6 lb (0.73 kg); mounts to standard duct openings\u003c\/li\u003e\n\u003cli\u003eIncludes sampling tubes for drawing air from the duct airstream to the sensing chamber\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe SK-DUCT-W is an addressable duct smoke detector housing for mounting in HVAC air handling unit ductwork. It accommodates compatible SK-series detector heads and reports to the Silent Knight 5820XL or 6500 series fire alarm control panels (a Honeywell brand) via the SK protocol SLC. Per NFPA 72, duct smoke detectors initiate HVAC shutdown to prevent smoke recirculation throughout a building. Check the installed detector head model for specific duct airflow and sampling tube requirements.\u003c\/p\u003e\n\u003cp\u003eVerify panel\/device family compatibility before ordering.\u003c\/p\u003e","brand":"Silent Knight","offers":[{"title":"Default Title","offer_id":52004329029925,"sku":"SK-DUCT-W","price":274.63,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0785\/7648\/4645\/files\/silent-knight-duct-detectors-default-title-silent-knight-sk-duct-w-intelligent-photoelectric-duct-smoke-detector-32276215103712.jpg?v=1771296676","url":"https:\/\/fastalarmdistribution.com\/products\/silent-knight-sk-duct-w","provider":"Fast Alarm Distribution","version":"1.0","type":"link"}