Watts killing you? Electricity bills are rising and your lights and appliances can be draining your wallet. Now you can analyze and reduce costs. Find out what appliances are actually worth keeping plugged in. Simply connect these appliances to the Kill A Watt, and it will assess how efficient they really are. The Large LCD display will count consumption by the Killowatt-hour, same as your local utility. You can calculate your electrical expenses by the day, week, month, even an entire year. Also check the quality of your power by monitoring Voltage, Line Frequency, and Power Factor. Now you ll know if it is time for a new refrigerator or if that old air conditioner is still saving you money. With the amazing Kill A Watt you ll know Watts" killing you. Now do something about it! Operating Voltage - 115 VAC Max Voltage - 125 VAC Max Current - 15 A Max Power - 1875 VA Unit Dimensions - 5 1/8H x 2 3/8 W x 1 5/8 / Weighs 5 ounces