We use cookies on our Site to give you the most related encounter by remembering your Tastes and repeat visits. By clicking “Acknowledge”, you consent to the use of Many of the cookies. VADs, VIDs, and EN54-23 compliance is often complicated, specially when you simply want to be sure that https://www.firesense.co.uk/type/addressable-fire-system/addressable-sounders-vids-vads/