Supplementary to Audible Alarms: VADs are particularly effective in higher-noise areas or where hearing protection is worn, supplementing traditional audible alarms. Click the link for more information on the categories of cookies we use and how to adjust your cookie configurations. More powerful documentation and reporting abilities: Appliance information and https://www.firesense.co.uk/type/addressable-fire-system/addressable-sounders-vids-vads/