{"product_id":"sd505-adh-honeywell-analog-addressable-duct-smoke-detector","title":"SD505-ADH | Honeywell Analog Addressable Duct Smoke Detector","description":"\u003ch4\u003eDescription \u003c\/h4\u003e\n\u003cp\u003eThe Honeywell SD505-ADH is a discontinued analog addressable duct smoke detector designed to detect smoke and combustion products in HVAC air ducts. It prevents smoke re-circulation through ventilation systems and is built to work with IntelliKnight fire alarm panels via Silent Knight sensor modules.\u003c\/p\u003e\n\u003cp data-start=\"284\" data-end=\"574\" class=\"\"\u003e \u003c\/p\u003e\n\u003cp data-start=\"284\" data-end=\"574\" class=\"\"\u003e \u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications \u003c\/h4\u003e\n\u003ctable width=\"100%\" style=\"height: 399.672px; width: 100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 34.9219px;\"\u003e\n\u003cth style=\"width: 31.0909%; text-align: left; height: 34.9219px;\" class=\"text-left text-body1 text-bold py-10 pr-10 desktop:pr-[10rem] desktop:text-nowrap\"\u003eCondition\u003c\/th\u003e\n\u003ctd style=\"width: 68.5455%; height: 34.9219px;\" class=\"text-left text-body1 py-10 desktop:w-[60%]\"\u003eNew\/Never Used Surplus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 27.4219px;\"\u003e\n\u003cth style=\"width: 31.0909%; text-align: left; height: 27.4219px;\" class=\"text-left text-body1 text-bold py-10 pr-10 desktop:pr-[10rem] desktop:text-nowrap\"\u003eBrand\u003c\/th\u003e\n\u003ctd style=\"width: 68.5455%; height: 27.4219px;\" class=\"text-left text-body1 py-10 desktop:w-[60%]\"\u003e\u003cspan data-sheets-root=\"1\"\u003eHoneywell\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 24.4219px;\"\u003e\n\u003cth style=\"width: 31.0909%; text-align: left; height: 24.4219px;\"\u003eCategory\u003c\/th\u003e\n\u003ctd style=\"width: 68.5455%; height: 24.4219px;\"\u003e\n\u003cdiv class=\"mt-1 md:mt-0 column-left basis-2\/4 divide-y divide-rad-gray-10 border-b-[0.0625rem] border-rad-gray-10 md:border-0\"\u003e\n\u003cdiv class=\"flex gap-[1.75rem] md:gap-x-0 xl:gap-x-[1.875rem]\"\u003e\n\u003cdiv class=\"text-body-4 w-full font-light py-5 pl-4 md:py-6 md:pl-6 text-rad-gray-70\"\u003e\n\u003cdiv class=\"max-w-[8rem] break-words\"\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003ePanel Accessories\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 34.2969px;\"\u003e\n\u003cth style=\"width: 31.0909%; text-align: left; height: 34.2969px;\"\u003ePart Number\u003c\/th\u003e\n\u003ctd style=\"width: 68.5455%; height: 34.2969px;\"\u003e\u003cspan data-sheets-root=\"1\"\u003eSD505-ADH\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 23.7188px;\"\u003e\n\u003cth style=\"width: 31.0909%; text-align: left; height: 23.7188px;\"\u003e\u003cspan\u003eSubcategory\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd style=\"width: 68.5455%; height: 23.7188px;\"\u003e\u003cspan data-sheets-root=\"1\"\u003e\u003cspan\u003eEnclosure\u003c\/span\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 30.25px;\"\u003e\n\u003cth style=\"width: 31.0909%; text-align: left; height: 30.25px;\"\u003e\u003cspan\u003eHousing Material\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd style=\"width: 68.5455%; height: 30.25px;\"\u003e\u003cspan data-sheets-root=\"1\"\u003e\u003cspan\u003eSteel backbox with clear plastic cover\u003c\/span\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 37.1719px;\"\u003e\n\u003cth style=\"width: 31.0909%; text-align: left; height: 37.1719px;\"\u003e\u003cspan\u003ePre-Installed Sensor\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd style=\"width: 68.5455%; height: 37.1719px;\"\u003e\u003cspan data-sheets-root=\"1\"\u003e\u003cspan\u003eSD505-APS (Photoelectric)\u003c\/span\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth style=\"width: 31.0909%; text-align: left; height: 19.5938px;\"\u003eSystem Compatibility\u003c\/th\u003e\n\u003ctd style=\"width: 68.5455%; height: 19.5938px;\"\u003eSilent Knight IntelliKnight series\u003cbr\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth style=\"width: 31.0909%; text-align: left; height: 19.5938px;\"\u003eCommunication\u003c\/th\u003e\n\u003ctd style=\"width: 68.5455%; height: 19.5938px;\"\u003e2-wire connection to SLC loop\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth style=\"width: 31.0909%; text-align: left; height: 19.5938px;\"\u003eAlarm Indication\u003c\/th\u003e\n\u003ctd style=\"width: 68.5455%; height: 19.5938px;\"\u003eLED on sensor head\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth style=\"width: 31.0909%; text-align: left; height: 19.5938px;\"\u003eMounting Options\u003c\/th\u003e\n\u003ctd style=\"width: 68.5455%; height: 19.5938px;\"\u003eDuct mount with included template\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003cth style=\"width: 31.0909%; text-align: left; height: 39.1875px;\"\u003eSampling Tubes Supported\u003c\/th\u003e\n\u003ctd style=\"width: 68.5455%; height: 39.1875px;\"\u003e3 standard lengths (field selectable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth style=\"width: 31.0909%; text-align: left; height: 19.5938px;\"\u003eWiring Terminals\u003c\/th\u003e\n\u003ctd style=\"width: 68.5455%; height: 19.5938px;\"\u003eLarge terminal screws for ease of use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 22.75px;\"\u003e\n\u003cth class=\"text-left text-body1 text-bold py-10 pr-10 desktop:pr-[10rem] desktop:text-nowrap\" style=\"width: 31.0909%; text-align: left; height: 22.75px;\"\u003eDimensions (H×L×W)\u003cbr\u003e\n\u003c\/th\u003e\n\u003ctd class=\"text-left text-body1 py-10 desktop:w-[60%]\" style=\"width: 68.5455%; height: 22.75px;\"\u003e14 × 13 × 7 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 27.5625px;\"\u003e\n\u003cth style=\"width: 31.0909%; text-align: left; height: 27.5625px;\"\u003eWeight\u003c\/th\u003e\n\u003ctd style=\"width: 68.5455%; height: 27.5625px;\"\u003e\u003cspan\u003e4 lbs\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003cspan style=\"font-size: 0.875rem;\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eInformation About \u003cspan data-sheets-root=\"1\"\u003eSD505-ADH\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003cp\u003eThe SD505-ADH features a heavy-duty steel housing with a clear plastic cover and includes a pre-installed SD505-APS photoelectric smoke detector. This model detects smoke present in airflow through HVAC systems and communicates directly with the IntelliKnight series control panels. The panel responds by activating programmed responses such as shutting down fans and blowers. The unit mounts directly to ducts and supports three standard sampling tube lengths. A two-wire connection to the SLC loop simplifies installation, and the unit is UL listed for commercial and industrial applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePre-Installed Sensor: Comes with SD505-APS analog photoelectric sensor for immediate integration.\u003c\/li\u003e\n\u003cli\u003eAddressable Detection: Connects to IntelliKnight control panels via 2-wire SLC loop for advanced programming.\u003c\/li\u003e\n\u003cli\u003eEarly Smoke Detection: Monitors air in ducts to detect smoke before it enters building areas.\u003c\/li\u003e\n\u003cli\u003eDurable Housing: Features rugged steel backbox and clear plastic cover for visibility and protection.\u003c\/li\u003e\n\u003cli\u003eVisual Alarm Indication: Integrated LED indication on the sensor head for local status confirmation.\u003c\/li\u003e\n\u003cli\u003eFlexible Mounting: Includes template and supports 3 standard tube lengths for various duct sizes.\u003c\/li\u003e\n\u003cli\u003eLarge Terminal Screws: Simplifies wiring and connection for installers.\u003c\/li\u003e\n\u003cli\u003eUL Listed for Duct Applications: Approved for use in commercial HVAC environments.\u003c\/li\u003e\n\u003cli\u003eDiscontinued Model: Still used in legacy IntelliKnight systems but replaced by newer models.\u003c\/li\u003e\n\u003cli\u003eCompatible Detectors: Supports SD505-APS (photoelectric) and SD505-AIS (ionization) modules.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe SD505-ADH provides reliable duct smoke detection with direct addressable system integration for early warning and HVAC system response.\u003c\/p\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":49105355473152,"sku":"SD505-ADH","price":701.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0388\/5331\/2557\/files\/dscn1353.png?v=1785545529","url":"https:\/\/alotechparts.com\/products\/sd505-adh-honeywell-analog-addressable-duct-smoke-detector","provider":"Alo Tech Solutions","version":"1.0","type":"link"}