When EnOcean brought the first generation of battery-less radio modules to the market most of their unique features—such as a 20nA wake-up timer—had to be realized in complex discrete analog electronic circuits. In recent years EnOcean has developed the revolutionary Dolphin chip integrating ultra low power radio with an energy harvester interface and a microcontroller. Based upon this brand new IC a new platform of maintenance free radio modules with superior performance, increased flexibility, and reduced cost is being introduced to the market.