February 24, 20179 yr comment_9851 I understand that the sounder need to be a certain level at bed head but does the fire alarm need to be at a certain db outside of a building ? Many thanks Report
February 27, 20179 yr comment_9866 Not externally (in fact external sounders must silence after 30 minutes just like intruder systems) unless there is an open area part of the building like a roof terrace. Visual Alarm Devices may be appropriate as well. Report
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