{"product_id":"system-sensor-d4120w-fire-alarm-duct-smoke-detector-new","title":"System Sensor D4120W Fire Alarm Duct Smoke Detector (NEW)","description":"\u003ch1\u003eSystem Sensor D4120W Fire Alarm Duct Smoke Detector\u003c\/h1\u003e\n\u003cp\u003eThe System Sensor D4120W delivers reliable smoke detection for ductwork environments, enhancing building safety with advanced sensing technology and wireless connectivity. Designed for quick installation and high performance, this model ensures prompt response to smoke presence within ventilation systems.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWireless communication capability\u003c\/strong\u003e enables seamless integration into existing fire alarm systems without complex wiring.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrecision sensing chamber\u003c\/strong\u003e detects smoke particles efficiently to minimize false alarms.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact form factor\u003c\/strong\u003e fits easily within various duct sizes for versatile installation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUL 268A listed\u003c\/strong\u003e compliance guarantees adherence to stringent industry safety standards.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating temperature range\u003c\/strong\u003e from 32°F to 120°F ensures reliable function under typical HVAC conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCompared to previous versions and similar products on the market, the D4120W offers improved wireless integration and heightened sensitivity, reducing maintenance complexity and enhancing detection accuracy in challenging duct environments.\u003c\/p\u003e\n\u003ch2\u003eEnhanced Detection and Connectivity Features\u003c\/h2\u003e\n\u003cp\u003eEquipped with a state-of-the-art sensing chamber, the D4120W accurately identifies smoke particles while resisting environmental contaminants that commonly trigger false alarms. Its wireless design eliminates the need for extensive conduit runs, simplifying retrofits and new installations alike. The detector’s compact design fits a wide range of duct sizes, making it adaptable to various HVAC configurations.\u003c\/p\u003e\n\u003cp\u003eMeeting UL 268A standards, this detector ensures dependable performance consistent with national safety codes. Its operational temperature range supports year-round functionality, maintaining vigilance even in fluctuating HVAC conditions. This blend of technology and engineering excellence makes the System Sensor D4120W a forward-thinking choice for modern fire safety systems in commercial and industrial buildings.\u003c\/p\u003e","brand":"System Sensor","offers":[{"title":"Default Title","offer_id":53836254019878,"sku":"101567069802","price":134.96,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0902\/3789\/4950\/files\/medium_e5bc591a-2108-4c3f-93f5-9ce505abfac8.jpg?v=1788891068","url":"https:\/\/firealarmstore.com\/products\/system-sensor-d4120w-fire-alarm-duct-smoke-detector-new","provider":"Incendico Fire Alarm Store","version":"1.0","type":"link"}