See how much energy you are using in your home with this compact, easy-to-install Z-Wave Home Energy Monitor. This Energy Monitor’s current transformer clamps fasten around the AC mains in your circuit box for installation and have been weatherized with an IP43 rating to resistant to rain and snow. The monitor will immediately begin reporting energy usage information to your Z-Wave gateway. All communications are done wirelessly over radio frequency (RF) and have a transmission range of up to 280 feet. Energy usage is reported in wattage or kilowatt hours. The monitor requires the use of four AA batteries which should last up to one year with normal usage. An electrician is not required for installation though highly recommended to ensure absolute safety.