Wifi-connected smoke alarm batteries

Jon's final pick fits in with a big theme of this year's CES: the internet of things. It seems no object is too small to avoid being connected, but this one isn't just hype - it could save lives.
"Another thing which caught my eye — take a standard PP3 battery and add a wifi transmitter to it. Then put it into a smoke detector and have a smartphone app which tells you what the battery level is, and whether the smoke detector siren has sounded.
"It's a great use of enabling smart devices which just plug into existing solutions. This approach will always have good traction because we already have a good use for the product. Go to www.smartroost.net to follow their route to market."
This article originally appeared at pcpro.co.uk