The FB5 - SABS Fire alarm safety sign is used to indicate that there is a fire alarm and where to activate it.
This sign is always a red fire alarm with a white background and red boarder. It is printed on a 0.9mm ABS Plastic and comes in 2 sizes, 190x190mm and 290x290mm.
It is always used with but not limited to the following signs: FB1 F31