{"product_id":"system-sensor-d4120w-same-day-shipping-sealed","title":"System Sensor D4120W Watertight 4-wire Photo Duct Smoke Detector","description":"\u003cp\u003eThe System Sensor D4120W is a watertight 4-wire photoelectric low-flow duct smoke detector. Weatherproof housing contains a System Sensor 2D51 4-wire conventional photoelectric sensor head.\u003c\/p\u003e\n\n\u003cdiv\u003e\n\u003cp\u003eFeatures two DPDT Form-C relay contacts.\u003c\/p\u003e\n\n\u003cp\u003eOperating voltage 24 VAC\/DC or 120VAC\u003c\/p\u003e\n\n\u003cp\u003eBackward compatibility with existing Innovair products, including remote accessories\u003c\/p\u003e\n\n\u003cp\u003eCOMPATIBLE SYSTEM SENSOR ACCESSORIES:\u003cbr\u003e\n— DST1 Metal sampling tube duct width up to 1ft (0.3m)\u003cbr\u003e\n— DST1.5 Metal sampling tube duct widths 1 ft to 2 ft (0.3 to 0.6 m)\u003cbr\u003e\n— DST3 Metal sampling tube duct widths 2 ft to 4 ft (0.6 to 1.2 m)\u003cbr\u003e\n— P48-21-00 End cap for metal sampling tubes\u003cbr\u003e\n— DST5 Metal sampling tube duct widths 4 ft to 8 ft (1.2 to 2.4 m)\u003cbr\u003e\n— RA100Z Remote annunciator alarm LED\u003cbr\u003e\n— DST10 Metal sampling tube duct widths 8 ft to 12 ft (2.4 to 3.7 m)\u003cbr\u003e\n— RTS151 Remote test station\u003cbr\u003e\n— APA151 Remote annunciator with piezo alarm RTS151KEY Remote test station with key lock\u003cbr\u003e\n— DH400OE-1 Weatherproof enclosure RTS2-AOS Multi-signaling accessory with add on strobe\u003cbr\u003e\n— ETX Metal exhaust tube duct width 1ft (0.3m)\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n","brand":"FIRE ALARM SYS","offers":[{"title":"Default Title","offer_id":51572013859136,"sku":"D4120W","price":120.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0831\/6466\/0032\/files\/b79b194c5e8d4b8b82942a5478a94d38.jpg?v=1772158791","url":"https:\/\/firealarmsys.com\/products\/system-sensor-d4120w-same-day-shipping-sealed","provider":"FIRE ALARM SYS","version":"1.0","type":"link"}