System Sensor

System Sensor was founded in 1984[4] to address the requirements of exclusive industry fire alarm products. Early products included the MASS and PA400 Series. 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 System Sensor PA400 is a mini horn, with an optional strobe attachment. On May 21, 1993, System Sensor filed a patent for a new strobe that was ADA compliant. It featured a clear lens and a reflector to distribute the light. Soon after, System Sensor updated the MASS with an ADA-complaint strobe. Around this time, System Sensor also had a line of smoke detectors, including the System Sensor 1400 2-wire Ionization detector and the 2400 2-wire Photoelectric detector. In 1997, the MASS was replaced with the SpectrAlert series, which included horn strobes, strobes, remote horns, chimes, chime strobes, speakers, and speaker strobes. A main feature of these was the ability to sync using a System Sensor MDL sync module or the System Sensor sync protocol on a supported fire alarm control panel. 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 switches. Around the time of the 2nd and 3rd gen SpectrAlerts being distributed, System Sensor was acquired from Pitway by Honeywell. Around this time, System Sensor introduced the i3 line of smoke detectors, which came in 2 and 4 wire models. These devices have a feature which they will poll with the fire alarm panel when the sensor is dirty, causing a trouble condition on the panel. In 2006, the original SpectrAlert series were replaced with the SpectrAlert Advance. Its main features were an updated mounting plate wiring design, allowing for easier installation, more candela options, and 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. In 2017, the System Sensor L-Series was released. 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. All SpectrAlert Advance products, expect for the outdoor models and mini horns, were discontinued by February 2020. On October of 2023, System Sensor announced the release of a new LED L series that uses lower current draw. The original L Series Xenon is planned to be discontinued on November 15, 2023.

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