{"product_id":"sd505-photo-silent-knight-addressable-photoelectric-smoke-detector-for-intelliknight-systems","title":"SD505-PHOTO | Silent Knight Addressable Photoelectric Smoke Detector for IntelliKnight Systems","description":"\u003ch4\u003eDescription \u003c\/h4\u003e\n\u003cp data-end=\"396\" data-start=\"144\"\u003eThe Silent Knight SD505-PHOTO is an addressable photoelectric smoke detector designed for IntelliKnight fire alarm systems. It automatically compensates for environmental contamination and provides reliable smoke detection for smoldering fires involving soft furnishings, plastics, or foams. With its low-profile design and compatibility with multiple bases, the SD505-PHOTO ensures flexible and efficient installation in fire protection applications.\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\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-PHOTO\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSubcategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSmoke Detector\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\u003e24–41 VDC\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 \/ 0.55 mA alarm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 in (50.8 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDiameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.9 in (99.8 mm)\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\u003eUp to 85% RH non-condensing\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\u003e0–300 FPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMounting Options\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4” Square, 4” OCT, Single gang mud ring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStatus Indicators\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBlinking LED (standby), Steady LED (alarm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Bases\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSD505-6AB, SD505-6IB, SD505-6RB, SD505-6SB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCertifications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUL Listed, FM Approved, CSFM Approved, MEA Approved\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eColor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOff-White\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.43 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-PHOTO\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003cp\u003eThe SD505-PHOTO is part of Silent Knight’s IntelliKnight series of analog\/addressable detectors, offering dependable detection performance for commercial and institutional fire safety systems. It uses a photoelectric sensing chamber with an LED light source and silicon photodiode to identify large visible smoke particles from smoldering fires. The unit supports remote testing and automatic sensor calibration, reducing maintenance requirements. Compatible with the SD505-6AB and other Silent Knight bases, this detector integrates seamlessly into existing IntelliKnight panels, providing stable operation and vandal-resistant locking for secure use.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAddressable Photoelectric Detection: Detects large smoke particles from smoldering fires with high sensitivity.\u003c\/li\u003e\n\u003cli\u003eAutomatic Contamination Compensation: Adjusts calibration over time to maintain reliable performance.\u003c\/li\u003e\n\u003cli\u003eLow-Profile Housing: Measures only 2 inches in height for discreet ceiling mounting.\u003c\/li\u003e\n\u003cli\u003eRemote Testing Capability: Supports calibration and functional testing through the control panel or PC software.\u003c\/li\u003e\n\u003cli\u003eStatus LED Indicator: Provides visual supervision with blinking standby and steady alarm states.\u003c\/li\u003e\n\u003cli\u003eVandal-Resistant Locking: Field-selectable security feature to prevent tampering.\u003c\/li\u003e\n\u003cli\u003eUL, FM, CSFM, and MEA Approved: Meets key fire safety standards for wide regulatory compliance.\u003c\/li\u003e\n\u003cli\u003eInterchangeable Base Compatibility: Works with SD505-6AB, SD505-6IB, SD505-6RB, and SD505-6SB bases.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe SD505-PHOTO delivers the reliability and precision required for commercial and institutional fire detection systems.\u003c\/p\u003e","brand":"Silent Knight","offers":[{"title":"Default Title","offer_id":49105211326720,"sku":"SD505-PHOTO","price":862.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0388\/5331\/2557\/files\/s-l1600_e31bc7d5-5a42-4027-995a-80d571666d05.webp?v=1785542610","url":"https:\/\/alotechparts.com\/products\/sd505-photo-silent-knight-addressable-photoelectric-smoke-detector-for-intelliknight-systems","provider":"Alo Tech Solutions","version":"1.0","type":"link"}