Supplementary to Audible Alarms: VADs are especially effective in significant-sound areas or where by Listening to safety is worn, supplementing conventional audible alarms. Installation in Large-Sound Parts: Put in Visible alarms in locations in which sound degrees exceed ninety dB(A) or where by hearing security is commonly utilized. This automatic https://www.firesense.co.uk/type/addressable-fire-system/addressable-sounders-vids-vads/