Supplementary to Audible Alarms: VADs are especially efficient in higher-noise places or the place Listening to security is worn, supplementing traditional audible alarms. Obtain the information that can help you provide helpful and efficient patterns, like illustrations and restrictions that Command device choice. The Office of Undergraduate Research is accessible https://www.firesense.co.uk/type/addressable-fire-system/addressable-sounders-vids-vads/