Simply plug it into any 110 volt wall outlet, key in the price you pay per kilowatt-hour, and plug the appliance (maximum 15 amps) into it. It not only displays how much the device costs to run, but the voltage, amps, and watts it uses as well.
Available from CableOrganizer.com for $49.95.
where can I purchase one of these meters and what is the cost.
Mike,
They can be purchased through a number of online stores including the one I added to the article in response to your question.
Trying to figure out kwh on a 460v ac/heat unit vs
a 208v ac/heat unit ? Both 20amp can you help?