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2. Fire alarm system - Wikipedia

   en.wikipedia.org/wiki/Fire_alarm_system

   Fire alarm system. A fire alarm system is a building system designed to detect, alert occupants, and alert emergency forces of the presence of fire, smoke, carbon monoxide, or other fire-related emergencies. Fire alarm systems are required in most commercial buildings. They may include smoke detectors, heat detectors, and manual fire alarm ...

3. List of car audio manufacturers and brands - Wikipedia

   en.wikipedia.org/wiki/List_of_car_audio...

   Milbert Amplifiers ( Vacuum tube car audio equipment) MTX Audio. Monster Cable (manufacturers speaker wiring) Nakamichi (also an OEM option for Lexus vehicles) Naim (specially for ' Bentley ' a British brand) Orion. Panasonic (a brand of Matsushita Electric Industrial Co.) (manufacturers Fender and ELS sound systems for Volkswagen and Acura ...

4. Carbon monoxide detector - Wikipedia

   en.wikipedia.org/wiki/Carbon_monoxide_detector

   A carbon monoxide detector or CO detector is a device that detects the presence of the carbon monoxide (CO) gas to prevent carbon monoxide poisoning. In the late 1990s Underwriters Laboratories changed the definition of a single station CO detector with a sound device to carbon monoxide (CO) alarm. This applies to all CO safety alarms that meet ...

5. Google Nest - Wikipedia

   en.wikipedia.org/wiki/Google_Nest

   Google Nest is a line of smart home products including smart speakers, smart displays, streaming devices, thermostats, smoke detectors, routers and security systems including smart doorbells, cameras and smart locks. [2] The Nest brand name was originally owned by Nest Labs, co-founded by former Apple engineers Tony Fadell and Matt Rogers in ...

6. As U.S. heat deaths rise, some landlords oppose right to air ...

   www.aol.com/news/u-heat-deaths-rise-landlords...

   Upgrading a single-family U.S. home to a central air-conditioning system generally costs between $5,000 and $10,000, according to figures from the American Society of Home Inspectors, while an in ...

7. Smoke detector - Wikipedia

   en.wikipedia.org/wiki/Smoke_detector

   A smoke detector is a device that senses smoke, typically as an indicator of fire. Smoke detectors/Alarms are usually housed in plastic enclosures, typically shaped like a disk about 150 millimetres (6 in) in diameter and 25 millimetres (1 in) thick, but shape and size vary. Smoke can be detected either optically ( photoelectric) or by physical ...