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Review title: Kill-a-Watt is OK
Product review: I have used Kill-a-Watt for about a month and it performs perfectly. It provides a lot of data on electrical usage, but it doesn't have a way to input costs per kilowatt. This requires a manual calculation (simple) and getting cost data from your power bill. It helps me find the high power uses (except built-in lines and 220 volt items) and hopefully be able to save me some money.
