1) Home Electricity Monitoring System: The home monitor is an intelligent instrument for monitoring and managing the electricity consumption in the home or building, which is composed of the receiver, transmitter and sensor. 2) Real-time monitor the electricity usage: Monitor home electronic appliances, with cost calculations built right in. Display hourly/daily/weekly/monthly electricity consumption, CO2 emission. View historical for your usage in historic graphical chart. Audible alert to notify of excessive usage of electricity. 3) REDUCE YOUR ELECTRICITY BILL: Measure power consumption in and cents to see exactly how much particular devices are costing you. Educate family to use effectively, reduce waste, cut costs down 30% which change your usage habits to do something for environment protection. 4) EASY INSTALLATION: Easy to install and program. No electrician required. No need to change your existing meter (sensor' clip can be installed directly onto your existing breaker box cabling) 5) Audible alert to notify of excessive usage of electricity, Weight: 0.98877324507 pounds, Manufacturer: Jaywool