{"product_id":"thorn-isn-550p-analog-addressable-photoelectric-smoke-detector-920096-550-series","title":"Thorn ISN-550P Analog Addressable Photoelectric Smoke Detector 920096 550 Series","description":"\u003cdiv data-is-intersecting=\"true\" data-turn-id-container=\"request-WEB:15a55551-664a-4560-bab9-75fa83c8cf1f-90\" class=\"\"\u003e\n\u003csection data-turn=\"assistant\" data-testid=\"conversation-turn-180\" data-turn-id-container=\"request-WEB:15a55551-664a-4560-bab9-75fa83c8cf1f-90\" data-turn-id=\"request-WEB:15a55551-664a-4560-bab9-75fa83c8cf1f-90\" dir=\"auto\" 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)))]\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-15 [--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\" data-conversation-screenshot-content=\"\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv 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-message-model-slug=\"gpt-5-5\" dir=\"auto\" data-turn-start-message=\"true\" data-message-id=\"10d9f23a-4b40-4144-80e2-e6f51d07dd5b\" data-message-author-role=\"assistant\" 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 dark markdown-new-styling\"\u003e\n\u003ch3 data-end=\"16\" data-start=\"0\" data-section-id=\"17lc1ru\"\u003eDescription:\u003c\/h3\u003e\n\u003cp data-end=\"784\" data-start=\"18\"\u003eThe Thorn ISN-550P Analog Addressable Photoelectric Smoke Detector 920096 550 Series is used in addressable fire alarm systems to provide early detection of visible smoke using photoelectric sensing technology and analog \u003ca href=\"https:\/\/plgautomation.com\/collections\/networking-communication\"\u003ecommunication\u003c\/a\u003e with compatible fire alarm control panels. Commonly installed in Thorn Autocall TFX-500, TFX-800, TFX-500M, and TFX-800M fire alarm systems protecting commercial buildings, hospitals, schools, industrial facilities, hotels, and institutional properties requiring intelligent addressable fire detection. Fire alarm technicians and \u003ca href=\"https:\/\/plgautomation.com\/collections\/hmi-operator-interfaces\"\u003esystem integrators\u003c\/a\u003e use this smoke detector for new installations, preventive maintenance, detector replacement, and upgrades to addressable fire detection systems. \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-end=\"803\" data-start=\"786\" data-section-id=\"5ms9th\"\u003eApplications:\u003c\/h3\u003e\n\u003cp data-end=\"1353\" data-start=\"805\"\u003eThe Thorn ISN-550P continuously monitors airborne smoke particles using an optical sensing chamber and transmits analog values to compatible Thorn Autocall TFX fire alarm control panels for intelligent alarm processing, automatic sensitivity compensation, maintenance monitoring, and individual device identification. It is widely used in commercial and industrial fire detection systems where reliable early smoke detection, addressable device monitoring, and continuous life safety supervision are essential. \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-end=\"1384\" data-start=\"1355\" data-section-id=\"5hg6bl\"\u003eTechnical Specifications:\u003c\/h3\u003e\n\u003cp data-end=\"2273\" data-start=\"1386\"\u003e• Brand: Thorn Automated Systems \/ Autocall\u003cbr data-end=\"1432\" data-start=\"1429\"\u003e• Part Number: 920096\u003cbr data-end=\"1456\" data-start=\"1453\"\u003e• Model: ISN-550P\u003cbr data-end=\"1476\" data-start=\"1473\"\u003e• Series: 550 Series\u003cbr data-end=\"1499\" data-start=\"1496\"\u003e• Product Type: Analog Addressable Photoelectric Smoke Detector Head\u003cbr data-end=\"1570\" data-start=\"1567\"\u003e• Detection Technology: Photoelectric (Optical) Smoke Detection\u003cbr data-end=\"1636\" data-start=\"1633\"\u003e• System Type: Analog Addressable Fire Alarm System\u003cbr data-end=\"1690\" data-start=\"1687\"\u003e• Compatible Control Panels: Thorn Autocall TFX-500, TFX-800, TFX-500M, TFX-800M\u003cbr data-end=\"1773\" data-start=\"1770\"\u003e• Operating Voltage: 17–30 VDC\u003cbr data-end=\"1806\" data-start=\"1803\"\u003e• Communication: Analog Addressable Loop\u003cbr data-end=\"1849\" data-start=\"1846\"\u003e• Addressing Method: XPERT Address Card\u003cbr data-end=\"1891\" data-start=\"1888\"\u003e• LED Indicator: Integral Alarm LED with Remote LED Output\u003cbr data-end=\"1952\" data-start=\"1949\"\u003e• Operating Temperature: 0°C to 38°C (32°F to 100°F)\u003cbr data-end=\"2007\" data-start=\"2004\"\u003e• Operating Humidity: Up to 85% Non-Condensing\u003cbr data-end=\"2056\" data-start=\"2053\"\u003e• Compatible Bases: IBN-552 (920192), IBN-553 (920194), IBN-554 (920195)\u003cbr data-end=\"2131\" data-start=\"2128\"\u003e• Status: Discontinued by Manufacturer\u003cbr data-end=\"2172\" data-start=\"2169\"\u003e• Application: Commercial and Industrial Fire Detection Systems \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-end=\"2299\" data-start=\"2275\" data-section-id=\"1cz0398\"\u003eCommon Replacements:\u003c\/h3\u003e\n\u003cp data-is-only-node=\"\" data-is-last-node=\"\" data-end=\"2412\" data-start=\"2301\"\u003e• Thorn ISN-550I 920095\u003cbr data-end=\"2327\" data-start=\"2324\"\u003e• Thorn IHN-135 920097\u003cbr data-end=\"2352\" data-start=\"2349\"\u003e• Thorn IHN-200 920098\u003c\/p\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","brand":"Thorn","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":51714021720366,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_33e81d5c-2fc6-4dd3-b826-1349500308f3.jpg?v=1770414030","url":"https:\/\/plgautomation.com\/products\/thorn-isn-550p-analog-addressable-photoelectric-smoke-detector-920096-550-series","provider":"PLG Automation ","version":"1.0","type":"link"}