Shows how the Wattson by DIY Kyoto reacts to power usage. You can hear light switches being clicked on in the background. Wattson records power use for 28 days and helps you save energy by showing you when you're using power and encourages you to switch off unneccesary devices. See our full article detailing how Wattson helped save us £382 a year on our electricity here http://www.kustompcs.co.uk/acatalog/Article_Wattson.html