The Kill A Watt is an electricity usage monitor marketed by P3 International. It features a large LCD display and it enables cost forecasting.
It measures the energy used by individual appliances plugged into the meter, as opposed to in-home energy use displays, which display the energy used by an entire household. The name is a play on the word kilowatt. The device can give an indication of the standby power used by appliances.
The Daily Omnivore 