The sign would help to reassure people that the wet riser is available to help to extinguish any fire, if it were to arise.
Another good feature of this sign is that it would glow in the dark if there is a lack of lighting. This is because it is Jalite AAA photoluminescent. Make sure the sign is placed where all visitors to your building will be able to see it.
Fixing requires anything as simple as sticky pads, 'No-nails' type adhesive or double-sided tape.