VIDs: Supply supplementary information and facts and direction, maximizing All round protection infrastructure in buildings. Set up in Significant-Noise Locations: Set up Visible alarms in parts where noise amounts exceed 90 dB(A) or the place Listening to security is usually used. This computerized process really should be in place Unless https://www.firesense.co.uk/type/addressable-fire-system/addressable-sounders-vids-vads/