Supplementary to Audible Alarms: VADs are notably powerful in large-noise areas or where by Listening to safety is worn, supplementing standard audible alarms. Simply click here To learn more on the types of cookies we use and how to improve your cookie options. Be certain that your faculty mentor is https://www.firesense.co.uk/type/addressable-fire-system/addressable-sounders-vids-vads/