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P3 International P4400 Kill A Watt Electricity Usage Monitor
2425 reviews
Jun, 2025
alaTest has collected and analyzed 2425 reviews of P3 International P4400 Kill A Watt Electricity Usage Monitor. The average rating for this product is 4.4/5, compared to an average rating of 4.1/5 for other products in the same category for all reviews. People really like the durability and size. The price and usability also get good feedback, whereas there are some critical reviews about the control panel and design. There are some mixed views about the controls and reliability.
usability, price, size, durability
design, control panel
We analyzed user and expert ratings, product age and more factors. Compared to other products in the same category the P3 International P4400 Kill A Watt Electricity Usage Monitor is awarded an overall alaScore™ of 80/100 = Very good quality.
Review analysis
(Based on 2425 reviews)Showing 2425 review(s)
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Showing 1 - 2023 of 2425
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Consumer review (amazon.com)
Amazon.com review summary for P3 International P4400 Kill A Watt Electricity Usage Monitor
alaTest has collected and analyzed 2013 user reviews of P3 International P4400 Kill A Watt Electricity Usage Monitor from Amazon.com. The average user rating for this product is 4.4/5, compared to an average user rating of 4.1/5 for other products in the same category on Amazon.com. People are impressed by the durability and size. The price and usability are also mentioned favorably, whereas there are some mixed opinions about the control panel and design.
usability, price, size, durability
93% of the reviews on Amazon.com give this product a positive rating.
Jun, 2025
Consumer review (newegg.com)
Works awesomely
plethora of information given by this device
no backlight
Oct, 2015
Consumer review (newegg.com)
Does what it needs to do.
Easy to figure out how to make it work. Plug-n-Play
None
Oct, 2015
Consumer review (newegg.com)
P3 International P4400
Worked very well. Suspected My freezer was not working properly. I plugged the load meter in line with the freezer for 30 days and found out it was indeed using too much power. Started searching and found that the thermostat was sticking sometimes...
No cons on this device
Aug, 2015
Consumer review (newegg.com)
Gives reliable results
I tested this with a 3-way 50-100-150 watt incandescent light and the readings were spot on. A must have in anyones' techie toolbox
Be aware that there is no backlit display with this model. keep a flashlight handy
Jul, 2015
Consumer review (newegg.com)
Gives reliable results
I tested this with a 3-way 50-100-150 watt incandescent light and the readings were spot on. A must have in anyones' techie toolbox
Be aware that there is no backlit display with this model. keep a flashlight handy
Jul, 2015
Consumer review (newegg.com)
P3 Kill A Watt Electricity Load Meter and Monitor
I like the ability to tell exactly how much power a device uses when loading a circuit
none for me
Jul, 2015
Consumer review (newegg.com)
Excellent investment!
Anyone who works with power supplies, or services/tests any equipment that plugs into 120VAC outlets NEEDS one.
This is one of the handiest and most useful tools I've bought in a long time! I've had it as part of my workshop test equipment for a number of years, and consider it invaluable! I use one at home and another at work. It ranks right up there with a...
The physical size makes it awkward, but the high level of usefulness makes up for that. It also causes some minor interference to a nearby FM radio, so I don't leave it in 24/7
Jun, 2015
Consumer review (newegg.com)
Excellent investment!
Anyone who works with power supplies, or services/tests any equipment that plugs into 120VAC outlets NEEDS one.
This is one of the handiest and most useful tools I've bought in a long time! I've had it as part of my workshop test equipment for a number of years, and consider it invaluable! I use one at home and another at work. It ranks right up there with a...
The physical size makes it awkward, but the high level of usefulness makes up for that. It also causes some minor interference to a nearby FM radio, so I don't leave it in 24/7
Jun, 2015
Consumer review (newegg.com)
Great Product Wish I Bought a Few More
I wish I had bought more when NewEgg had their deal. I works as advertised. I was surprised to learn my refrigerator doesn't use as much electricity as I thought it did. I also used it to measure my microwave power consumption to determine if the...
Would be nicer if casing was physically smaller. Would be real nice if it supported the over the powerline protocols so information could be collected and logged
Feb, 2015
Consumer review (newegg.com)
eye opening
one handy tool to have around
This meter will show you without a doubt the truth as to what your appliances cost you to run them and also ease your mind if you think you have overloaded your outlets so far as amp draw ,I now know my 3 aquariums on 2 outlets are safe and my computer...
none
Jan, 2015
Price comparison for P3 International P4400 Kill A Watt Electricity Usage Monitor
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