Monitoring system that wirelessly measures energy usage The Efergy Elite Classic wirelessly sends information on energy usage to the display monitor. Simple and easy to install, the monitor updates every 10 seconds to accurately track where energy is being used. No need to add a separate meter base to monitor multiple suites in your home! The Elite Classic updates every 10 seconds so you can instantly see the impact of turning a light on or off, boiling the kettle or using your tumble dryer. It has an innovative memory function that allows you to see how much you have used today, yesterday and in the last week or month. The Elite Monitor also displays your daily average so you can see when you are using more electricity than normal and see how your average usage reduces as you change the way you do things. Please note: The CT’s included in the kit are for up to 125A and will fit a wire up to 1/0 Copper or Aluminum. A 200 Amp CT is currently in development. 433MHz frequency. 100-600 voltage range. 50mA-200A maximum measured current. 230-328ft transmission range. DC powered with battery backup. Monitoring system kit comes with 1x transmitter, 2x 200A split-core current sensors, and 1x wireless display. Wirelessly receive information on energy usage which updates every 10 seconds. Measure the energy used by turning the light off or on, boiling water and more. Keep track of your hourly, weekly, and monthly average energy used. Audio alerts let you know if you exceed maximum consumption target. Certifications: CSA US, UL Listed, FCC, ETL Listed.