Supplementary to Audible Alarms: VADs are especially powerful in high-sound regions or where by Listening to protection is worn, supplementing conventional audible alarms. A VAD or Visible alarm product is a kind of emergency inform program that gives a visible cue to persons all through an crisis. The Place of https://www.firesense.co.uk/type/addressable-fire-system/addressable-sounders-vids-vads/