Visible Alarms: Make use of gentle to sign emergencies, Primarily efficient in noisy options and for anyone with Listening to impairments. A VAD or Visible alarm machine is a sort of unexpected emergency warn system that provides a visual cue to people in the course of an crisis. We also https://www.firesense.co.uk/type/addressable-fire-system/addressable-sounders-vids-vads/