{"product_id":"sd505-aps-silent-knight-addressable-low-profile-photoelectric-smoke-detector","title":"SD505-APS | Silent Knight Addressable Low-Profile Photoelectric Smoke Detector","description":"\u003ch4\u003eDescription \u003c\/h4\u003e\n\u003cp data-end=\"396\" data-start=\"144\"\u003eThe Silent Knight SD505-APS is an addressable, low-profile photoelectric smoke detector designed for IntelliKnight fire alarm systems. It provides reliable detection of smoldering fires while automatically compensating for sensor contamination. Compact, easy to install, and vandal-resistant, the SD505-APS ensures stable fire protection performance in demanding environments.\u003c\/p\u003e\n\u003cp class=\"\" data-end=\"574\" data-start=\"284\"\u003e \u003c\/p\u003e\n\u003cp class=\"\" data-end=\"574\" data-start=\"284\"\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 (Honeywell Farenhyt)\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-APS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSubcategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAddressable Smoke Detectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSeries\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIntelliKnight SD505 Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDetector Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAddressable photoelectric smoke detector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e17–41 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStandby Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.55 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAlarm Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.55 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSensitivity Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.88% – 3.56% obscuration\/ft\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\u003eRelative Humidity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to 85% non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAir Velocity Tolerance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0–300 FPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHeight (with base)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 inches (low-profile)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBase Compatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSD505-6AB common base\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConstruction\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePlastic housing, vandal-resistant locking\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaintenance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eField cleanable chamber; drift compensation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTesting\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCalibration and sensitivity viewable via panel or remote Windows-based software\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eListings \u0026amp; Approvals\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUL Listed; NFPA 72 compliant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduction Status\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDiscontinued\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eApprox. 0.3 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 SD505-APS\u003c\/h4\u003e\n\u003cp\u003eThe SD505-APS is part of the Silent Knight IntelliKnight SD505 series of intelligent detectors, built for open-area smoke detection in commercial and institutional applications. Each detector has a unique digital address recognized by the FACP, simplifying identification and alarm response. Featuring a field-cleanable chamber, automatic drift compensation, and calibration test capability (local or remote via Windows-based software), the SD505-APS supports efficient maintenance and long service life. Its low-profile housing uses the SD505-6AB common base, ensuring compatibility across the series and flexibility in system design.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAddressable Device: Each detector has a unique address recognized by the FACP.\u003c\/li\u003e\n\u003cli\u003ePhotoelectric Sensing: Provides accurate detection of smoldering fires and dense smoke.\u003c\/li\u003e\n\u003cli\u003eContamination Compensation: Automatically adjusts for environmental conditions to reduce false alarms.\u003c\/li\u003e\n\u003cli\u003eBuilt-In Test Feature: Supports local and remote calibration testing for simplified maintenance.\u003c\/li\u003e\n\u003cli\u003eLow-Profile Design: Measures just 2 inches high with base for unobtrusive installation.\u003c\/li\u003e\n\u003cli\u003eBase Compatibility: Uses SD505-6AB base, shared with other IntelliKnight detectors.\u003c\/li\u003e\n\u003cli\u003eRobust Construction: RF\/transient protection and vandal-resistant locking enhance reliability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe SD505-APS delivers the reliability and precision required for professional fire detection in IntelliKnight addressable systems.\u003c\/p\u003e","brand":"Silent Knight","offers":[{"title":"Default Title","offer_id":49105213784320,"sku":"SD505-APS","price":733.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0388\/5331\/2557\/files\/silent_knight_sd505-aps_photoelectric_smoke_detector.jpg?v=1785542671","url":"https:\/\/alotechparts.com\/products\/sd505-aps-silent-knight-addressable-low-profile-photoelectric-smoke-detector","provider":"Alo Tech Solutions","version":"1.0","type":"link"}