Significantly productive for your Deaf or hard of Listening to, specifically in scenarios the place Visible alarms might go unnoticed. EN54-23 is a ecu Conventional for Visible alarm devices, which aims to make certain that their light-weight output is measured uniformly throughout Europe. This common is relatively new, driven partially https://www.firesense.co.uk/type/conventional-fire-system/conventional-sounders-vids-vads/