It's important to select the proper easichange® alarm to exchange your obsolete BRK products. The table below will assist you to pick the correct alternative alarm. Remember to note that you could exchange your existing BRK optical and ionisation alarms with an easichange optical alarm, nevertheless your BRK warmth alarm https://www.firesense.co.uk/type/conventional-fire-system/conventional-fire-alarm-control-panels/