Supplementary to Audible Alarms: VADs are specially efficient in high-noise areas or where by Listening to defense is worn, supplementing classic audible alarms. Click this link for more information on the categories of cookies we use and the way to modify your cookie configurations. More powerful documentation and reporting capabilities: https://www.firesense.co.uk/type/addressable-fire-system/addressable-sounders-vids-vads/