The Circle us a basic element of the Plugwise system. It is a plug which is easily placed between the wall socket and the plug of the appliance. The smart plug measures the energy consumption of the connected appliance and stores the data in its own memory. Additionally it can switch the appliance on and off. Energy-consumption data are transmitted to the Plugwise software, installed on your PC via a wireless Zigbee-MESH-network. The energy usage-data of the connected appliance are subsequently processed by the software into clear overviews and graphs. From your computer you can wirelessly switch the connected appliances on and off, either manually or automatically through pre-set switching schedules.
The plug also contains a stand-by killer function.