Repeat actions 2 to four for your whole aged BRK alarms. We endorse changing all alarms while in the process collectively to maintain ideal system Procedure; failing to do so may compromise interlink effectiveness. 【Loud Alarm 】Young children and seniors in your own home in unexpected emergency, press the emergency https://www.firesense.co.uk/type/addressable-fire-system/addressable-fire-alarm-control-panels/