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Connect your appliances into the Kill A Watt, and assess how efficient they are. A large LCD display counts consumption by the Kilowatt-hour just like utility companies. You can figure out your electrical expenses by the hour, day, week, month, even an entire year. Monitor the quality of your power by displaying Voltage, Line Frequency, and Power Factor
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Buy this toy
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This works just the way they say. I am still testing all my appliances. This is a toy that helps you save money.
Rating: 
(5
out of 5) @ 2008-12-03
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Worth the money!
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This is a very informative tool. We ordered two, one for ourselves and one for a gift. It is easy to use and will help us make decisions about how we use our electrical products. We expect to minimize our use of electricity and thus save money. Highly recommend.
Rating:
(5
out of 5) @ 2008-11-29
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Great Device - Great Savings Tool
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I purchsed this item in July 2008; after many months of watching my appliances & devices, I've cut my electric bill by about 35%.
No issues with the device, just plug in and go.
If you have an appliance that you wonder about, you can leave it plugged into the kill a watt; and allow it to log usage -- this is helpful in determining as in my case if an appliance is just so old that it's an energy hog. My refrigerator I replaced as a result of using this method, it used enough in a month to warrant replacing with a new model; and will pay for itself in about 8 months from the energy savings -- and the bright side, I now have an ice maker.
I'd recommend doing just that on refrigerators; since they cycle on/off constantly throughout the day, You'll not have to *guess* how much it runs, or if your measure with the kill a watt was when the compressor was off; and have a false sense that it's a saver.
Rating:
(5
out of 5) @ 2008-11-26
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Does the job
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This is a simple & affordable unit that you plug your 120v appliances into and get various electrical information.
Works well, look for better prices on other sites, I've seen it for $16.
There are 2 problems with the Kill-A-Watt:
1. It only works for 110-120VAC, not for 220-240VAC.
2. When plugged into a double outlet wall plug, it is so large that it will not allow anything else to be plugged in on the other socket.
Rating: 
(2
out of 5) @ 2008-11-24
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Great features, but could use improvements
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This is a great little device with a lot of features for the price. I bought the device to see how much power my 40" LCD tv, amp, and PS3 were drawing.
The only problem I have with this device is that the screen, despite the large size of the numbers, is difficult to read due to really low contrast. You have to view it from just the right angle, and usually with the aid of a flashlight. This is really hard to do when you have baseboard-mounted outlets like I have.
I would be curious to know if this screen contrast issue is a common problem, or if I may have a defective unit. At any rate, better screen contrast and a back-light would make this a perfect little power monitoring tool.
Rating: 
(4
out of 5) @ 2008-11-22
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