Supplementary to Audible Alarms: VADs are specially powerful in large-noise locations or where Listening to defense is worn, supplementing conventional audible alarms. Set up in High-Noise Regions: Set up Visible alarms in spots exactly where noise stages exceed ninety dB(A) or wherever Listening to security is usually used. Appliances and https://www.firesense.co.uk/type/addressable-fire-system/addressable-sounders-vids-vads/