Aeotec ZW095-C3A60 Home Energy Meter, 60A, Gen5

Installed in an electricity box, the energy meter will monitor the total consumption of electricity used by an entire building. And its intelligent clamps will report that energy use back to your Z-Wave gateway or controller, in watts or kilowatt-hours, and in real time. So you can see how much electricity you really use and when you use it.