Read the full story in New Scientist.
Smart appliances are the ugly ducklings of home technology. No one is really sure why you’d want to use Evernote on your fridge or start your washing machine over the internet.
As a concept, smart devices do have the potential to help save money, despite their ludicrous price tags, by measuring the amount of electricity you use and helping you reduce it. But forget the $4000 smart fridge – engineers at Carnegie Mellon University in Pittsburgh, Pennsylvania, have designed a cheap wireless device that can monitor the power consumption of your appliances with 98 per cent accuracy, and it doesn’t even need plugging in.