{"product_id":"system-sensor-d4120w-watertight-4-wire-photoelectric-duct-smoke-detector","title":"System Sensor D4120W","description":"\u003ch1\u003eSystem Sensor D4120W\u003c\/h1\u003e\n\u003ch2\u003eWatertight 4-Wire Photoelectric Duct Smoke Detector\u003c\/h2\u003e\n\u003cdiv class=\"group\/conversation-turn relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex-col gap-1 md:gap-3\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col flex-grow\"\u003e\n\u003cdiv class=\"min-h-[20px] text-message flex w-full flex-col items-end gap-2 break-words [.text-message+\u0026amp;]:mt-5 overflow-x-auto whitespace-normal\" dir=\"auto\" data-message-id=\"45b8a7b0-cb46-4110-a9b0-c7c978b3476f\" data-message-author-role=\"assistant\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden first:pt-[3px]\"\u003e\n\u003cdiv class=\"markdown prose w-full break-words dark:prose-invert light\"\u003e\n\u003cdiv class=\"\" data-turn-id-container=\"request-69c2e25b-ceec-8325-b181-fcf23f0e758a-2\" data-is-intersecting=\"true\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-69c2e25b-ceec-8325-b181-fcf23f0e758a-2\" data-turn-id-container=\"request-69c2e25b-ceec-8325-b181-fcf23f0e758a-2\" data-testid=\"conversation-turn-204\" data-scroll-anchor=\"false\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"a74057db-3fd8-4185-9ac2-1c031299d21b\" dir=\"auto\" data-message-model-slug=\"gpt-5-3-mini\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-turn-start-message=\"true\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003cdiv class=\"\" data-turn-id-container=\"request-69c2e25b-ceec-8325-b181-fcf23f0e758a-12\" data-is-intersecting=\"true\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-69c2e25b-ceec-8325-b181-fcf23f0e758a-12\" data-turn-id-container=\"request-69c2e25b-ceec-8325-b181-fcf23f0e758a-12\" data-testid=\"conversation-turn-224\" data-scroll-anchor=\"false\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"e2731879-c174-4a9f-a939-075c6c3b7489\" dir=\"auto\" data-message-model-slug=\"gpt-5-3-mini\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-turn-start-message=\"true\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003cp data-start=\"0\" data-end=\"355\"\u003eSystem Sensor D4120W Watertight 4-Wire Photoelectric Duct Smoke Detector is designed for reliable smoke detection in HVAC duct systems exposed to harsh indoor and outdoor environments. Its NEMA 4-rated enclosure and low-flow sensing technology ensure accurate performance while simplifying installation, testing, and maintenance.\u003c\/p\u003e\n\u003cul data-start=\"375\" data-end=\"868\"\u003e\n\u003cli data-section-id=\"1toxclo\" data-start=\"375\" data-end=\"489\"\u003eNEMA 4 watertight enclosure rated for protection against rain, dust, windblown debris, and hose-directed water\u003c\/li\u003e\n\u003cli data-section-id=\"6gt4te\" data-start=\"490\" data-end=\"592\"\u003e4-wire photoelectric duct smoke detector with integrated low-flow technology for HVAC applications\u003c\/li\u003e\n\u003cli data-section-id=\"fi3xp1\" data-start=\"593\" data-end=\"681\"\u003eOperates in airflow speeds from 100 to 4,000 FPM and temperatures from –4°F to 158°F\u003c\/li\u003e\n\u003cli data-section-id=\"wd745f\" data-start=\"682\" data-end=\"769\"\u003ePlug-in sensor head provides strong false alarm immunity and simplified maintenance\u003c\/li\u003e\n\u003cli data-section-id=\"13akm52\" data-start=\"770\" data-end=\"868\"\u003eFlexible pivoting housing supports square, rectangular, and round duct mounting configurations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"group\/conversation-turn relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex-col gap-1 md:gap-3\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col flex-grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"45b8a7b0-cb46-4110-a9b0-c7c978b3476f\" dir=\"auto\" class=\"min-h-[20px] text-message flex w-full flex-col items-end gap-2 break-words [.text-message+\u0026amp;]:mt-5 overflow-x-auto whitespace-normal\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden first:pt-[3px]\"\u003e\n\u003cdiv class=\"markdown prose w-full break-words dark:prose-invert light\"\u003e\n\u003cul data-is-only-node=\"\" data-is-last-node=\"\" data-end=\"786\" data-start=\"343\"\u003e\n\u003cli data-is-last-node=\"\" data-end=\"786\" data-start=\"701\"\u003e\n\u003cp data-is-last-node=\"\" data-end=\"786\" data-start=\"703\"\u003e\u003cstrong\u003eFor more information visit \u003ca rel=\"noopener\" title=\"System Sensor\" href=\"https:\/\/buildings.honeywell.com\/us\/en\/brands\/our-brands\/system-sensor\" target=\"_blank\"\u003eManufacturer's Website\u003c\/a\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e","brand":"System Sensor","offers":[{"title":"Default Title","offer_id":47017402204316,"sku":"D4120W","price":238.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0638\/6283\/3308\/files\/System-Sensor-D4120W-Watertight-4-Wire-Photoelectric-Duct-Smoke-Detector.jpg?v=1780518839","url":"https:\/\/lowvoltagedealer.com\/products\/system-sensor-d4120w-watertight-4-wire-photoelectric-duct-smoke-detector","provider":"Low Voltage Dealer","version":"1.0","type":"link"}