VIDs: Give supplementary details and direction, enhancing All round protection infrastructure inside of properties. In order to steer clear of discrimination, BS EN 54-23 compliant VADs could possibly be put in in all sanitary accommodation (not simply WCs) and all hotel bedrooms, university student accommodation and identical Houses, Together with https://www.firesense.co.uk/type/addressable-fire-system/addressable-sounders-vids-vads/