With every Fire Detection System, there will be an external alarm and / or light / sounder. There are Rules where these can be placed. At least 2.4m above FFL – I don’t like anything important externally within 3.0m of FFL.
Designers take note. You can hide these bright red ‘pimples’ or highlight / centre them if you know what the Rules are.
More Fire Tools™ are on the way!