St. Charles, IL - System Sensor's SpectrAlert Advance, the industry's newest, most refined series of audible/visible notification appliances, includes indoor and outdoor selectable-output horns and ...
The SpectrAlert advance low-frequency sounders and sounder strobes by System Sensor of St. Charles, Ill., are the first notification appliances to meet the new NFPA 72 2010/2013 low-frequency ...
System Sensor of St. Charles, Ill., has expanded its SpectrAlert Advance audible/visible notification appliance to include a line of mass notification system (MNS) devices and accessories. These ...
System Sensor’s SpectrAlert Advance notification appliances meet NFPA 72 sleeping space requirements
The System Sensor SpectrAlert® Advance line of low frequency notification appliances – which includes sounders, sounder strobes, and sounder bases – is designed to meet the NFPA 72® sleeping space ...
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