Supplementary to Audible Alarms: VADs are specially efficient in significant-sound parts or exactly where hearing security is worn, supplementing traditional audible alarms. Set up in Substantial-Sound Areas: Put in visual alarms in locations where sounds amounts exceed 90 dB(A) or where by Listening to protection is usually employed. four. Mēs https://www.firesense.co.uk/type/addressable-fire-system/addressable-sounders-vids-vads/