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2. Nuisance Alarms Significantly Reduced - Siterwell Unveils New ...

   lite.aol.com/tech/story/0022/20241031/9265234.htm

   In contrast, this 10-year battery alarm will offer long-lasting and worry-free protection for your home, and minimize battery waste for the environment. (*Only interconnected combo detector has a built-in 10-year battery. The hardwired combo detector comes with 2 replaceable AA batteries.) One-Click Silence for 10H

3. Smoke detector - Wikipedia

   en.wikipedia.org/wiki/Smoke_detector

   Some smoke alarms use a combination of the 2; usually using the 9V battery as an extra power source in the event of an outage. Commercial smoke detectors issue a signal to a fire alarm control panel as part of a fire alarm system. Usually, an individual commercial smoke detector unit does not issue an alarm; some, however, have built-in sounders.

4. 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]

5. 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.

6. Security alarm - Wikipedia

   en.wikipedia.org/wiki/Security_alarm

   Ionization smoke alarms can quickly detect the small amounts of particles produced by fast-flaming fires, such as cooking fires or those fueled by paper or flammable liquids. A newer type of the smoke detector is the photoelectric smoke detector. It contains a light source, which is positioned indirectly to the light sensitive electric sensor.

7. Gentex (automotive supplier) - Wikipedia

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

   Gentex smoke detectors are used in hospitals, hotels, offices and other buildings worldwide. [9] 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]