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2. Heat detector - Wikipedia

   en.wikipedia.org/wiki/Heat_detector

   A residential heat detector. A heat detector is a fire alarm device designed to respond when the convected thermal energy of a fire increases the temperature of a heat sensitive element. The thermal mass and conductivity of the element regulate the rate flow of heat into the element. All heat detectors have this thermal lag. Heat detectors have ...

3. System Sensor - Wikipedia

   en.wikipedia.org/wiki/System_Sensor

   A main feature of these alarms was the ability to sync them using a System Sensor MDL sync module or the System Sensor sync protocol on a supported fire alarm control panel. Three years after the initial release of the SpectrAlert series, System Sensor released the ceiling mount SpectrAlerts.

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. Honeywell Gent - Wikipedia

   en.wikipedia.org/wiki/Honeywell_Gent

   The self-test feature can be used a maximum of 60 times for optical sensors and 100 times for heat sensors, which equates to an expected life of up to 14 years of optical detection self-testing, and 20 years of heat detetection self-testing, with an expected maximum of 4 self-test and 4 manual tests a year, before the detectors need to be replaced.

6. EN 54 - Wikipedia

   en.wikipedia.org/wiki/EN_54

   For smoke detectors according to EN 54-7 and fire detectors with smoke sensor (parts 12, 20 and 30 of EN 54) the test fires TF2, TF3, TF4 and TF5 are used. The EN 54-20 defines the following test fires with reduced fuel quantity for aspirating smoke detectors with enhanced or very high sensitivity (class A or B):

7. Walmart in California’s Central Valley shuts down after 3 ...

   www.aol.com/news/walmart-california-central...

   The fire sparked midday Saturday on the roof, which had solar panels and A/C units. Walmart in California’s Central Valley shuts down after 3-alarm fire prompts store’s evacuation Skip to main ...