Installed in an electricity box, the energy meter will monitor the total consumption of electricity used by an entire building. Its intelligent clamps will report this energy use in watts or kilowatt-hours to your Z-Wave gateway or controller, in watts or kilowatt-hours. Almost in real time you can see how much electricity you really use and when you use it. The main body is anchored using a back mount. The device has three clamps and reports W and kWH (up to 60 Ampere).