Fire Alarms - Seen and not heard?
Sunday, April 27th, 2008Fire alarm systems are meant to be seen and not heard, that is unless you need them. 
Recently we have found that we have been carrying out more audibility tests upon systems installed in the last 10-15 years and found without exception that they have failed the audibility www. It seems that within the history of our industry, the sound levels of systems were not paid the attention that they now get.
