The Owl Micro wireless electricity monitor allows you to take control of your electrical usage and get real time feedback on how much your electricity costs you. The Owl Micro is easy to install and use and details the actual savings from turning off appliances, lights and more. Simply clip the sensors around both hot phases of the main electrical supply cables in your home's electrical panel, then plug the wires into the wireless transmitter that sends data to the remote display unit, which can be used as far as 100 feet away. The unit has Memory giving additional readings and recording your results over time. 

• (2) Sensors
• (1) Transmitter
• (1) Display unit
• (4-6) AAA batteries

Specs 

• Calculates costs per hour and total costs
• Measures amps used, calculates usage based on system voltage
• Calculates usage in dollars and cents, kilowatts or tons of greenhouse gas
• Cost per current and previous hour, day, week, month, quarter, and year 
• Recalculates every 6 seconds