VIDs: Present supplementary data and assistance, enhancing In general basic safety infrastructure inside of buildings. To be able to steer clear of discrimination, BS EN fifty four-23 compliant VADs can be put in in all sanitary accommodation (not only WCs) and all hotel bedrooms, university student accommodation and very similar https://www.firesense.co.uk/type/addressable-fire-system/addressable-sounders-vids-vads/