Why we chose Vivint: Vivint's Experienced installers Assess your own home prior to suggesting devices, so you get customized company from day one particular. They even offer Strength administration solutions to avoid wasting you dollars on electric payments. The SBBRKSM easichange® kit replaces the discontinued BRK 660MBX optical and 670MBX https://www.firesense.co.uk/type/addressable-fire-system/addressable-fire-alarm-control-panels/