Visual Alarms: Employ light-weight to sign emergencies, Specifically effective in noisy configurations and for anyone with hearing impairments. So as to prevent discrimination, BS EN fifty four-23 compliant VADs could be set up in all sanitary accommodation (not just WCs) and all lodge bedrooms, college student accommodation and similar Attributes, https://www.firesense.co.uk/type/addressable-fire-system/addressable-sounders-vids-vads/