P3 International P4400 Kill A Watt Electricity Usage Monitor
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Tools and Hardware Reviews of P3 International P4400 Kill A Watt Electricity Usage Monitor
Customer Review: Best Xmas Present Ever -- the gift that goes on giving
Summary: 5 Stars
I gave a Kill A Watt to my husband for Christmas, and I think it was his favorite present. He opened it up and put it to use while we were making breakfast. You can read all about it at
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They say knowledge is power, and knowledge OF power is really helping us to lower our electricity bills and carbon footprint.
I think understanding our power usage is part of the basic info we need to make good decisions, and this item makes that process easy and interesting.
Customer Review: Best gadget I've bought in a long time!
Summary: 5 Stars
The P3 is excellent! I bought it to determine how much wattage and amperage my different Christmas display elements used, to computer my total power consumption with my Light-O-Rama controllers.
I've since found myself wondering how much power all sorts of things around the house use, comparing light bulbs, and various other electronics.
Works excellent, very fast, simple no-brainer design!
Customer Review: Better than I had expected
Summary: 5 Stars
The Kill A Watt was better than I had expected and the service was prompt.Customer Review: Beware of misleading descriptions
Summary: 4 Stars
This is a great device and works well.
However, I think the product description and some of the reviews are a little misleading. From the information, I would have thought this device had a place to plug in my electricity cost, and then it would actually show me the COST of usage.
It does not do that. If you leave it plugged in, it will show you a running total of how many kilowatt-hours have been used, along with the time that's it's taken to use them. That's it. You still have to take that kilowatt-hours and time, and crunch it manually against your electric bill's rates, to find the actual cost for a given period.
This makes sense, in a way, since appliances such as refrigerators, that cycle on and off, need to see an average over time -- an instantaneous readout doesn't tell you anything.
However, it would have been really nifty if you could plug in YOUR cost of electricity, and have it show you the daily/monthly/yearly cost of running the device automatically. This device, again, will NOT go that far.
Having said that, it's still a pretty cool device. It does show both watts and amps, along with the aforementioned cumulative kilowatt-hours. Less useful is the volts and frequency readouts -- geez, if it doesn't read something close to 120V/60Hz, you've got a problem! It's not like those readouts are going to be changing a lot.
Worth the money, for the curious. Just don't expect it to do TOO much.
Customer Review: Bring Your Energy Bill Back Down to Earth
Summary: 5 Stars
I have a lot of electronic gadgets involved in my work and leisure time and in the past year my electric bill had skyrocketed. I bought a couple of these devices and based on what I discovered, I cut my electricity bill from nearly $300/month to just under $100 a month. Needless to say, this handy little tool paid for itself immediately.
I found it incredible helpful to know how much electricity the refrigerator, washing machine and all of my computers were using. This item is very easy to use and understand, and you can relate its output right back to your energy bill.