Supplementary to Audible Alarms: VADs are specially powerful in substantial-noise areas or where Listening to safety is worn, supplementing standard audible alarms. Common Recognition: VADs are created to provide a common warning signal that is easily recognizable by everyone, despite their amount of hearing or cognitive means. Uncomplicated configuration and https://www.firesense.co.uk/type/addressable-fire-system/addressable-sounders-vids-vads/