Supplementary to Audible Alarms: VADs are particularly helpful in significant-sound locations or where Listening to safety is worn, supplementing conventional audible alarms. Simply click here for more information on the categories of cookies we use and the way to change your cookie settings. Facts Dissemination for Users: Designers and suppliers https://www.firesense.co.uk/type/addressable-fire-system/addressable-sounders-vids-vads/