System Sensor SpectrAlert Advance Low Frequency Sounders and Sounder Strobes
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 requirements for certain new sleeping spaces, according to the company.
By SSI Staff · January 16, 2014
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