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2. Smoke detector - Wikipedia

   en.wikipedia.org/wiki/Smoke_detector

   Smoke detectors in large commercial and industrial buildings are usually connected to a central fire alarm system. Household smoke detectors, also known as smoke alarms, generally issue an audible or visual alarm from the detector itself or several detectors if there are multiple devices interlinked. Household smoke detectors range from ...

3. First Alert - Wikipedia

   en.wikipedia.org/wiki/First_Alert

   On September 4, 1992, BRK recalled all hardwired smoke alarms under the series 1839I and 2839I due to testing programs determining that corrosion could form on the alarm horn's electrical contacts, causing the piezo to fail to make any noise. [6] In May 2006, First Alert combination smoke alarms were recalled due to draining batteries rapidly. [7]

4. Fire alarm system - Wikipedia

   en.wikipedia.org/wiki/Fire_alarm_system

   Fire alarm systems are required in most commercial buildings. They may include smoke detectors, heat detectors, and manual fire alarm activation devices (pull stations). All components of a fire alarm system are connected to a fire alarm control panel. Fire alarm control panels are usually found in an electrical or panel room.

5. The Best Place to Put Your Smoke Detector (Plus 3 Spots ... - AOL

   www.aol.com/lifestyle/best-place-put-smoke...

   Replace smoke detectors at least every 10 years: Don't place your life in the hands of an outdated smoke alarm. For the most part, you can plan on replacing your smoke detector at least every 10 ...

6. Develco Products - Wikipedia

   en.wikipedia.org/wiki/Develco_Products

   [7] [8] Wireless passive infrared sensors (PIR) may be used for burglary protection [9] with other devices used for light automation and temperature measurement. Other products are deployed as part of traditional alarm systems including interconnected smoke alarms, remotely controlled keypads, door and window sensors.

7. Gentex (automotive supplier) - Wikipedia

   en.wikipedia.org/wiki/Gentex_(automotive_supplier)

   In the early 1990s, Gentex introduced a smoke detector equipped with a strobe light which is designed to alert deaf and hard of hearing individuals. [10] Gentex manufactures a wide range of photoelectric detectors for fire alarm systems, standalone, and interconnect systems.