Supplementary to Audible Alarms: VADs are notably helpful in high-noise places or wherever Listening to security is worn, supplementing traditional audible alarms. Installation in Large-Sound Regions: Set up Visible alarms in places exactly where sounds degrees exceed 90 dB(A) or where Listening to safety is usually applied. The bottom incorporates https://www.firesense.co.uk/type/addressable-fire-system/addressable-sounders-vids-vads/