Supplementary to Audible Alarms: VADs are particularly helpful in substantial-noise spots or the place hearing defense is worn, supplementing standard audible alarms. Click this link For more info on the types of cookies we use and how to adjust your cookie configurations. Click on "Decrease" to reject, or "Customise" for https://www.firesense.co.uk/type/addressable-fire-system/addressable-sounders-vids-vads/