'They are essential' – how smoke detectors are evolving
Source: BBC
Chris BaraniukTechnology ReporterMcConnell FamilyThe McConnell family home was left partially destroyed by fireThe school run was over and laundry was in the tumble dryer. Mum and step-mum of four Liz McConnell was about to sit down to work at her Dover home last September. But that's when the sound of a fire alarm cut through her morning.She walked towards it and eventually found smoke billowing out of the…
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