Supplementary to Audible Alarms: VADs are significantly effective in large-sound parts or where by Listening to protection is worn, supplementing conventional audible alarms. As a way to steer clear of discrimination, BS EN fifty four-23 compliant VADs may very well be mounted in all sanitary accommodation (not merely WCs) and https://www.firesense.co.uk/type/addressable-fire-system/addressable-sounders-vids-vads/