{"product_id":"silent-knight-sd505-duct-addressable-duct-smoke-detector-with-photoelectric-sensor-hvac","title":"Silent Knight SD505-DUCT Addressable Duct Smoke Detector with Photoelectric Sensor HVAC","description":"\u003ch4\u003eDescription\u003c\/h4\u003e\n\u003cp\u003eThe Silent Knight SD505-DUCT is an addressable duct smoke detector designed to detect smoke within HVAC air handling systems in commercial and industrial facilities. This unit features a pre-installed SD505-APS photoelectric sensor for accurate detection of combustion particles in moving air. It provides early warning to help prevent the spread of smoke through ductwork.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNew\/Never Used Surplus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSilent Knight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFire Safety\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSD505-DUCT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSubcategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDuct Smoke Detectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDetection Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePhotoelectric (Analog Addressable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSensor Model\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSD505-APS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCommunication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTwo-Wire SLC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCurrent Consumption\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.55 mA (Standby\/Alarm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAir Velocity Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e300 to 4000 fpm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e32°F to 120°F (0°C to 49°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHumidity Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10% to 85% RH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEnclosure Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSteel Backbox with Clear Cover\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e9.125 in (H) x 7.25 in (W) x 2.25 in (D)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eColor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGray with Clear Cover\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIncluded Components\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHousing, Sensor, 7.5 in Exhaust Tube, Mounting Hardware\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompliance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUL 268A Listed, NFPA 72 \u0026amp; 101\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHVAC Duct Smoke Detection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2.5 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 \u003cspan data-sheets-root=\"1\"\u003eSD505-DUCT\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003cp\u003eThe SD505-DUCT is part of the Silent Knight SD505 series, engineered for integration with addressable fire alarm control panels via a two-wire SLC connection. It features a rugged steel backbox with a clear cover, allowing for visual inspection while protecting internal components in demanding environments. The detector utilizes air sampling tubes to continuously monitor airflow within ducts, ensuring reliable detection across varying duct sizes and air velocities. Designed for compliance with fire safety standards, it is commonly used in HVAC systems to enhance building safety and meet regulatory requirements.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAddressable Detection System: Integrates with fire alarm panels via two-wire SLC communication\u003c\/li\u003e\n\u003cli\u003ePhotoelectric Sensor Technology: Detects smoke particles from combustion with high accuracy\u003c\/li\u003e\n\u003cli\u003ePre-Installed Sensor: Includes SD505-APS analog photoelectric smoke sensor\u003c\/li\u003e\n\u003cli\u003eHVAC Duct Monitoring: Designed specifically for air handling and duct applications\u003c\/li\u003e\n\u003cli\u003eAir Sampling Tube System: Uses intake and exhaust tubes for continuous airflow monitoring\u003c\/li\u003e\n\u003cli\u003eWide Air Velocity Range: Operates effectively between 300 and 4000 feet per minute\u003c\/li\u003e\n\u003cli\u003eLED Alarm Indication: Provides visual status and alarm signaling on the sensor head\u003c\/li\u003e\n\u003cli\u003eHeavy-Duty Steel Enclosure: Durable backbox with clear cover for protection and inspection\u003c\/li\u003e\n\u003cli\u003eFlexible Installation: Includes mounting template and hardware for quick setup\u003c\/li\u003e\n\u003cli\u003eMultiple Tube Options: Supports various duct widths with optional sampling tubes\u003c\/li\u003e\n\u003cli\u003eLow Current Consumption: Approximately 0.55 mA in standby and alarm conditions\u003c\/li\u003e\n\u003cli\u003eCode Compliance: UL 268A listed and compliant with NFPA 72 and 101 standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe SD505-DUCT delivers the reliability and precision required for early smoke detection in HVAC duct systems and fire safety applications.\u003c\/p\u003e","brand":"Silent Knight","offers":[{"title":"Default Title","offer_id":51270330286378,"sku":"SD505-DUCT","price":899.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/0392\/4266\/files\/silent_knight_sd505-duct_duct_smoke_detector_2.jpg?v=1773867009","url":"https:\/\/iqelectro.com\/products\/silent-knight-sd505-duct-addressable-duct-smoke-detector-with-photoelectric-sensor-hvac","provider":"IQElectro","version":"1.0","type":"link"}