Supplementary to Audible Alarms: VADs are especially productive in higher-sounds locations or exactly where Listening to safety is worn, supplementing traditional audible alarms. Installation in Significant-Sounds Areas: Install visual alarms in places in which noise ranges exceed 90 dB(A) or where Listening to security is often utilised. Google programs to https://www.firesense.co.uk/type/addressable-fire-system/addressable-sounders-vids-vads/