P3 International Kill A Watt Electricity Usage Monitor, Model# P4460
Connect your appliances into the Kill A Watt™ and measure how efficient they are. LCD display counts consumption by the Kilowatt-hour just like utility companies.
Product Specs
Key Specs
Application | Electricity usage monitor |
Battery Included | Built in |
Measures | Voltage, line frequency and amps |
Display Shows | Kilowatt-hour |
Additional Specs
- Large LCD display counts consumption by the Kilowatt-hour
- Automatically calculates electrical expenses by the hour, day, week, month, even an entire year
- Monitor the quality of power by displaying Voltage (V), Line Frequency (Hz), and Amps (A)
- Accurate within 0.2%
- Built-in battery to save data if unplugged
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Customer Product Reviews
Overall Rating:
4.6
/
5
7 of 7(100%)would recommend this product to a friend.
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Review This Product
Overall Rating:
4
/
5
Good Tool for Calculating Storage and Capacity.,
July 13, 2009
By Tripp2153
from Helena, MT
"The P3 International Kill A Watt Electricity Usage Monitor was a good tool for the purpose that I bought it for. I was able to measure the amount of power used by diffierent items and then calculate what size of inverter and what battery capacity would be necessary to run them for a week and for a month. Even though it does not store the information gathered, it worked quite well for the basic purposes for which I used it."
What is your level of technical expertise? Professional
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Overall Rating:
5
/
5
Proved my point,
November 18, 2008
By montesa247
from Dawsonville, GA
"I purchased this monitor in preparation for planning a microhydro generator installation, but it more than paid for itself in a different way. Our power company changed the utility meters in our area and our power bill was about normal the first month. Then the bill went to more than 3 times the normal amount. When we complained, they just said that we had a problem. I turned off all the breakers in our house except for one. Then connected the Kill-A-Watt monitor to that outlet with an electric heater set to run without cutting off. After a two hour test, the monitor reported exactly what the heater rating was for that time period. The power company meter reported 4.1 times as much. With that information, they finally agreed to test our meter (which they replaced) and adjusted our bill to what it should have been."
What is your level of technical expertise? Professional
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Overall Rating:
4
/
5
Really like this item,
November 17, 2008
By fwaid
from Victor, NY
"Purchased this from Northern Tool some months ago and have used it several times to determine true power usage of my appliances. Eventually purchased a whole house power monitor. I recommended this item to a neighbor and he also likes it. It has really helped me to understand my energy consumption and the devices that are using the most energy. As a result I've cut my electric bills by at least 10% over the last several months."
What is your level of technical expertise? Professional
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Overall Rating:
5
/
5
Kill A Watt,
November 17, 2008
By soulecologist
from California
"Purchase this product to determine which electrical product was using the most electricity. I was able to determine that my Garage Door opener was using a huge amount of electricty. I unplug the Garage Door opener and my electricty bill was reduce by 60 percent. I am currently looking to buy a rated energy efficent garage door opener to replace my old non effienct garage door opener. Kill a Watt saved me a tremendous amount of money."
What is your level of technical expertise? Beginner
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Overall Rating:
5
/
5
Trivet,
April 14, 2008
By geokal
from Oak Harbor, WA
"I purchased an electrical trivet some time ago, so that I didn't have to heat the tea. I make a large pot of tea that last all day.
My electricity bill has been high lately, so I used the device to check the power usage. According to the monitoring device it only uses about ten cents a week. That may be about the cost of heating tea in the microwave.
I am going to connect it to my computer's uninterruptable power supply to see how much power I waste with my day long computer usage. I don't expect that cost to be favorable.
geokal
I cannot think of any other way to monitor power usage other than to believe advertising or nameplate data."
I cannot think of any other way to monitor power usage other than to believe advertising or nameplate data."
What is your level of technical expertise? Home Handyman
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Overall Rating:
4
/
5
Give you the knowledge to save money,
January 21, 2008
By SecurityGuy
from MN
"I bought one of these about 6 months ago. There are 2 different models, the kill a watt and the kill a watt EZ. The advantage of the EZ is that you can enter your electricity cost and it will calculate your actual costs for you. The basic one just tells you the KW usage and you multiply that by your cost per KW to figure out your cost in dollars.
Basically you can plug what ever you want into it (within reason) and turn that device on. It will calculate the total power use by that device and then will estimate how much the cost would be over time (daily, monthly, yearly). For something that draws constant power (a light thats always on for instance) you can just plug it in and see how much it will use over the years. For something that is turned on and off (like a TV) it is best to leave it hooked up for a few days so it can figure out how often it is left on.
Because of this I have started turning my computer off at night, unplugged unneeded devices, etc. I have also seen how little some things cost that I thought was expensive (my TV only costs about $20/year with my current usage).
My only complaint is that you can't unplug it from the wall and look at the results from your testing. if they had a battery in there that would be nice because often I can't read the display from where the outlet is, so I have to use an exention cord just to get the Kill A Watt to a location that I can read it. Other than that it would be rated Excellent."
Basically you can plug what ever you want into it (within reason) and turn that device on. It will calculate the total power use by that device and then will estimate how much the cost would be over time (daily, monthly, yearly). For something that draws constant power (a light thats always on for instance) you can just plug it in and see how much it will use over the years. For something that is turned on and off (like a TV) it is best to leave it hooked up for a few days so it can figure out how often it is left on.
Because of this I have started turning my computer off at night, unplugged unneeded devices, etc. I have also seen how little some things cost that I thought was expensive (my TV only costs about $20/year with my current usage).
My only complaint is that you can't unplug it from the wall and look at the results from your testing. if they had a battery in there that would be nice because often I can't read the display from where the outlet is, so I have to use an exention cord just to get the Kill A Watt to a location that I can read it. Other than that it would be rated Excellent."
What is your level of technical expertise? Professional
3 of 3 people found this review helpful.
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What's Included with this Item?
- (1) Kill A Watt unit
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