FireAngel NG-9B - A Tale Of Caution
Listen to Paddy Lea telling the story of his mum, and a gas leak that could have proven disastrous.
He called around to see her one day for a cup of tea, and ended up calling emergency services and investigating a gas leak. The back story here is that she is fiercely independent, and wants to remain in her own home. For peace of mind he has installed detection for smoke, carbon monoxide and natural gas, and also that his mum knows that if she hears an alarm to leave the house as quickly as possible.