Helium has a go at Internet of Things thing – using ultra-low power tech

Platform includes homegrown sensors and 802.15.4

As the internet of things (IoT) gets closer to commercial reality, the solutions flooding into the market are increasingly targeted at a real world use case. Some of these are extremely specific - smart meters and smart streetlights are commonplace now, but startup Helium Systems says its initial focus is on smart refrigeration."