Supplementary to Audible Alarms: VADs are especially powerful in significant-sounds locations or in which Listening to defense is worn, supplementing common audible alarms. As a way to stay away from discrimination, BS EN 54-23 compliant VADs may be mounted in all sanitary accommodation (not only WCs) and all resort bedrooms, https://ez-bookmarking.com/story18520906/addressable-sounders-secrets