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'''System Sensor''' is an American manufacturer of fire protection equipment. Headquartered in [[St. Charles, Illinois]], System Sensor is a subsidiary of [[Honeywell|Honeywell International]].<ref>{{cite web |url=http://www.honeywelllifesafety.com/HLSP1business.html |title=Companies |publisher=Honeywell Life Safety |accessdate=24 October 2009 |archive-url=https://web.archive.org/web/20141230172256/http://www.honeywelllifesafety.com/HLSP1business.html |archive-date=30 December 2014}}</ref> System Sensor develops and distributes fire alarm devices such as notification appliances, fire detectors, manual initiating devices (pull stations and call points), CO detectors, and more fire protection devices for multiple markets across the globe, and for other Honeywell companies.<ref>{{Cite web |title=Products |url=https://buildings.honeywell.com/us/en/brands/our-brands/system-sensor/products |access-date=2023-05-18 |website=buildings.honeywell.com |language=en-US}}</ref><ref>{{cite news |title=Holykell Technology |url=https://www.holykell.com/ |access-date=10 August 2023}}</ref>
== History ==
{{Expand section|date=December 2024}}
System Sensor was founded in 1984<ref>{{cite web |title=About System Sensor |url=http://www.systemsensor.com/html/about.html |archive-url=https://web.archive.org/web/20100308105416/http://www.systemsensor.com/html/about.html |archive-date=March 8, 2010 |accessdate=24 October 2009}}</ref> to address the requirements of exclusive industry fire alarm products.
== Products ==
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=== Notification appliances ===
==== MASS Series ====
[[File:System Sensor MASS ADA.jpg|thumb|
The MASS was multi-tone and came in remote horn and horn strobe models as well as remote strobe models, and speaker strobes and remote speakers. The MASS series was originally sold under BRK Electronics and later under System Sensor. It featured a xenon flash tube housed under a translucent white plastic. The original MASS series used break off tabs to change the tone meaning that once the tone is changed, it is permanent. The MASS series was later on updated to use jumpers rather than break off tabs.
In 1993, System Sensor filed a patent for a new strobe that was [[Americans with Disabilities Act of 1990|ADA compliant]]. It featured a clear lens and a reflector to distribute the light as well as higher candela options, the minimum being 15 [[candela]]. Soon after, System Sensor implemented the ADA- ==== PA400 Series ====
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==== SpectrAlert Series ====
[[File:System Sensor SpectrAlert Classic Horn Strobe.jpg|thumb|
The SpectrAlert series was the successor to the MASS series. The SpectrAlert series included horn strobes, strobes, remote horns, chimes, chime strobes, speakers, and speaker strobes. 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. This included horn strobes, remote strobes, speaker strobes, and remote speakers. There were multiple generations of the SpectrAlert. The first generation had a screw lock. The second generation, released in the early 2000s, replaced the screw lock with a clip lock. Approximately before 2006, the third generation was released with multi-candela strobes, and replaced the jumpers for the horn tone with [[DIP switch
A few years after the discontinuation of the SpectrAlert series, fire alarm enthusiasts dubbed the SpectrAlert series as "SpectrAlert Classic" indicating that it is the original SpectrAlert line of fire alarm products. The term became popular and is now being used by most fire alarm enthusiasts today.
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==== SpectrAlert Advance Series ====
[[File:System Sensor SpectrAlert Advance Ceiling Horn Strobe.jpg|thumb|
The SpectrAlert Advance was introduced in 2006 to replace the Legacy SpectrAlerts.{{Citation needed|date=April 2024}} Its main features were an updated mounting plate wiring design that allows for easier installation, contains more candela options, and has an updated design. The Advance came in the same models as the original SpectrAlert, with the addition of mini horns, and low frequency sounders, which were released in 2014.{{Citation needed|date=December 2024}}
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==== L-Series ====
[[File:System Sensor L-Series.jpg|thumb|
[[File:System Sensor L-Series Speaker Strobe.jpg|thumb|
In 2017, the System Sensor L-Series was released, replacing the SpectrAlert Advance series.{{Citation needed|date=April 2024}} New features included a new 3000 hertz tone, more candela options, lower power draw, and an updated design. The low frequency devices were released in 2018. The new low frequency devices had Temporal 4 for Carbon Monoxide (CO) operations. As of late 2023, the xenon L-Series devices were discontinued.<ref name=":0" />
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