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P3 International P4400 Kill A Watt Electricity Usage Monitor | 
 enlarge | Brand: P3 International
Category: Photography
List Price: $52.43
Buy New: $16.99
You Save: $35.44 (68%)
New (63)
Rating:  592 reviews
Color: Ivory
Media: Electronics
Autographed: No
Memorabilia: No
Shipping Weight (lbs): 0.4
Dimensions (in): 11.8 x 3 x 7.3
Legal Disclaimer: Warranty does not cover misuse of product.
MPN: P4400
Model: P4400
UPC: 751549044009
EAN: 0751549044009
ASIN: B00009MDBU
Availability: Usually ships in 1-2 business days
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| Features:
| • | Electricity usage monitor connects to appliances and assesses efficiency | | • | Large LCD display counts consumption by the kilowatt-hour | | • | Calculates electricity expenses by the day, week, month, or year | | • | Displays volts, amps, and wattage within 0.2 percent accuracy | | • | Compatible with inverters; designed for use with AC 115-volt appliances |
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| Editorial Reviews:
Product Description
Large LCD counts consumption by the kilowatt hour Connect to household appliance & it will assess its efficiency Calculate electrical expenses by the day, week, month or year Check the quality of power by monitoring voltage, line frequency & power factor
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| Customer Reviews:
Showing reviews 1-5 of 592
 Fascinating gadget July 9, 2005
Phillip Roncoroni (Manhattan, New York)
878 out of 890 found this review helpful
I absolutely love this thing.
Having recently moved out on my own, and generally just enjoying statistics in general, I bought this to monitor my electric costs after two high electric bills in a row. The various results I found were quite surprising.
My air purifier, which I bought here on Amazon, uses 85 watts all the time... 85 * 24 hrs * 30 days / 1000 watts = 61.2kWhr * $0.20 = $12.24 a month.
Well, that's quite a costly monthly addition I never thought of. And that's just the begining.
My Vornado fan uses 45w... my air conditioner, on high 6 (out of 12) spikes up to 1200 watts. Jeez.
My computer, at idle with external drives, uses about 250w. When doing extremely intensive things, like encoding a video, 310w.
My light behind my computer desk, with five, 10-watt bulbs, doesn't actually use 50-watts total. No, it uses 50-watts for the bulbs, PLUS 30-watts apparently just for the light unit to function.
You too will find out all these things you never knew, and possibly save money by cutting out, or replacing energy guzzlers.
The product is also made in China. Just like everything else now.
Excellent Product! August 20, 2004
R. Nizlek (Burlington, VT, USA)
336 out of 340 found this review helpful
I absolutely love this product, it's one of the best devices I've aquired in a long time. When I purchased it a few years ago, I paid close to $50, but it was worth every penny. Some of my joy from using the device simply comes from the fact that I'm curious how much energy the products in my home use (I now know, for instance, that my cable box uses 15W of energy whether it is on or off, at that it wastes a little more than 10 kilowatt hours each month, or that my fridge uses 350W when on, or that my laptop only uses 40W - a useful fact to know when I went to buy an inverter to use it in my car), but it can also be used to save energy (I found that hitting the switch on the surge supressors of my computers at night can save me almost $5 a month off my electric bill). Additionally, it's interesting to find out where all the power you use goes, and even what members of the family use the most electricity (you could do a side by side comparason of a child's computer with yours).
Even though I've had my Kill-A-Watt for years, I still take it out regularly to test any new equipment in my home. I know my cell phone charger uses 4 W, my regular battery charger 5 W, and my IC3 15 minute battery charger 73 W.
Surely most will not have as much fun with this unit as I do, but it can be both practical and enjoyable for people such as myself or those looking to save some money off their electric bill. It's also an asset for anyone off-grid, who is generating their power with solar energy or by other renewable means.
Works Well September 16, 2005
Jack A. Mracek (Yucaipa, CA)
81 out of 81 found this review helpful
This is a nice little meter. It measures Volts, Amps, PowerFactor, Watts, VA, KWH and Elapsed Time in use. I got it to survey my house loads for a potential solar system and it performed very well. I could plug a device in to it for a week and figure out what the average power consumption was. I couldn't believe how bad the power factor is on my window swamp cooler.
The addition of a pigtail would be nice because it is hard to see behind furniture and it is so big that it uses an entire outlet while in use. A 240V mode would be nice also.
It worked better then I had expected.
Great Fun for Obessive Compulsive People February 12, 2006
Lance K. Wig (Asheville, NC)
94 out of 96 found this review helpful
If you are a "Miser," this device will be your best friend. I bought the "Kill-A-Watt" because I suspected that our old Fridge was shooting up the electric bill. I plugged the Fridge into the meter and left it for 3 days. I was very surprised to find out the the fridge was only burning about 1.5 KWH (Kilowatt Hours) per day, which is about what it should.
Now I am going around the house and plugging other appliances in for a couple days. The real shocker was that my "economical" eMachines PC along with a CRT monitor was using more energy than the fridge! The computer was burning almost 2 KWH per day. I made changes to the energy saver software in Windows, so that the monitor automatically shuts off in 10 minutes and the computer hibernates in 1 hour. This has brought the daily consumption down to 1 KWH.
For those of you who don't understand KWH, its a measurement of electric usage by the power company. To be simple, using a KWH is about .08¢ in our area. So, if you save 1 KWH per day, you save .08¢ After a month's time, it's about $2.48. After a year it's about $30 bucks. The savings add up over time.
With the Kill-A-Watt, I've found out lots of interesting things:
My Mac Mini with a LCD monitor uses about 1/2 the power of my eMachines Tower with CRT. That's 70 Watts vs. 140 Watts.
My Electric Blanket which I though was "economical" pulls 120 Watts during operation. It actually uses 1 KWH per day. I even found out that the blanket burns 10 Watts when the power switch is off!
I found many "power bandits" in my home. These are devices like cellphones, scanners, routers, modems that have those little black power blocks. Most of these devices use 5 to 10 watts with the power switch off. With the Kill-A-Watt, I was able to find the biggest offenders and plug them into a timer that shuts off each night when they are not in use.
If you are truly obsessive about your electrical bill like me, you can make a nice Excel spreadsheet with all your appliances. You can enter Watts, Kilowatt Hours, Price per hour and than figure if replacing a device would pay for the purchase and how long it will take.
As everyone says in their reviews, "This device will pay for it's self."
"Kill-a-Watt" Electricity Usage meter September 17, 2005
Stan L. Suring (Wisconsin)
44 out of 44 found this review helpful
This piece of test equipment has just saved me hundreds of dollars by avoiding our purchase of a new freezer. While our chest type freezer is over 25 years old my wife and I suspected that it was the cause of our high electric bills. However after monitoring it for a number of days with this meter we discovered that the power it was taking to run it was very nominal and there would be no payback for at least 10 years to replace it with a new one.
Showing reviews 1-5 of 592
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