The cost of electricity can really hit you where it hurts. Now with Kill-A-Watt you can reduce energy costs and identify the real energy abusers.

Just plug this residential-grade device into a three-prong grounded wall outlet, and plug your appliance, computer, lamp, or other electrical product into the monitor to find out how efficient (or wasteful) they really are.

On the large LCD display youll be able to monitor the kilowatt hour consumption of an item to learn how much it costs to run. You can also assess power quality by monitoring voltage, line frequency, and power factor.

Kill A Watt : Gadgeteer Hands On Review
Kill A Watt : The Review at GadgetFind

While the Kill A Watt will give you all the information you need to calculate the energy costs of an appliance you can take it to the next level with the Kill A Watt EZ.