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P3 International P4460 Kill A Watt EZ Electricity Usage Monitor

by P3
4.3 out of 5 stars 1,140 customer reviews
| 75 answered questions

Price: $28.44 & FREE Shipping on orders over $49. Details
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  • Calculates cost and forecasts by week, month, and year
  • Displays eight critical units of measure on the large LCD display
  • Built-in backup of accumulated information.
  • Accurate within 0.2%
  • Calculates cost and forecasts by week, month and year
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$28.44 & FREE Shipping on orders over $49. Details In Stock. Sold by Pro Ebiz and Fulfilled by Amazon. Gift-wrap available.

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Technical Details

  • Shows the operating costs of your household appliances
  • Accurate to within 0.2%; Large LCD Display
  • Calculates cost and forecasts by week, month and year
  • Built-in battery backup
  • Displays eight critical units of measure.

Product Description

Product Description

Now you can cut your energy costs and find out what appliances are actually worth keeping plugged in. Simply connect these appliances to the Kill A Watt EZ, and it will assess how efficient they really are. The large LCD display will count consumption by the Kilowatt-hour, same as your local utility, letting you calculate your cumulative electrical expenses and forecast by the day, week, month, even an entire year. Also check the quality of your power by monitoring voltage, line frequency, and power factor. Now you’ll know if it is time for a new refrigerator or if that old air conditioner is still saving you money. With the amazing Kill A Watt EZ you'll know "watts" killing you.

From the Manufacturer

The cost of electricity is soaring but you can help reduce your energy costs with the new Kill A Watt EZ. Simply plug it into a wall socket and then plug in your appliance to assess how efficient they really are. The large LCD will display the power consumption by the kilowatt-hour and the built-in memory retains accumulated readings when power is interrupted. Program in your local utility rate and display projected costs by hour, day, week, month, or year. Evaluate the quality of the electrical power provided from your utility company by monitoring voltage, line frequency (Hz), and power factor (VA). Perfect for detecting voltage drops and brownout conditions before they damage delicate equipment. The knowledge you gain from Kill A Watt EZ can save you thousands of dollars.

Product Information

Technical Details

Part Number P4460
Item Weight 6.4 ounces
Product Dimensions 1.5 x 2.2 x 5 inches
Item model number P4460
Color grey
Material Other
Power Source battery-powered
Voltage 125 volts
Amperage Capacity 15 A
Item Package Quantity 1
Number Of Pieces 1
Display Style LCD
Special Features Shows the operating costs of your household appliances, Accurate to within 0.2%; Large LCD Display, Calculates cost and forecasts by week, month and year, Built-in battery backup, Displays eight critical units of measure.
Usage personal
Batteries Included? No
Batteries Required? No
Warranty Description Six-month parts and labor

Additional Information

ASIN B000RGF29Q
Customer Reviews
4.3 out of 5 stars 1,140 customer reviews

4.3 out of 5 stars
Best Sellers Rank #1,606 in Home Improvements (See top 100)
#6 in Home Improvement > Electrical > Testers > Voltage Testers
#3,914 in Electronics > Accessories & Supplies
Shipping Weight 6.4 ounces (View shipping rates and policies)
Domestic Shipping This item is also available for shipping to select countries outside the U.S.
International Shipping This item can be shipped to select countries outside of the U.S. Learn More
Date First Available October 26, 2006

Warranty & Support

Warranty, Parts:Six month manufacturer's warrantyWarranty, Labor:Six month manufacturer's warranty
Product Warranty: For warranty information about this product, please click here

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Customer Questions & Answers

Customer Reviews

Top Customer Reviews

I was amazed at some of the things I found around the house that draw power just sitting there doing nothing. This thing is easy to figure out and program in your cost per Kwh.

A couple of things I found by using this device:
-- the entertainment center costs me $11 a year to have just sit there in standby mode. This is a 32" LCD TV, surroundsound system, DVD player, Wii, and subwoofer all plugged into a Monster HTS 1000 MKIII PowerCenter with Clean Power Stage 2 (8 AC outlet, 2 coax, phone & network). If I watch a DVD or play the Wii, it costs me 40 cents a day, or about 3.33 cents an hour.
-- My gaming computer (Dual Core, 500 watt power supply and 19" LCD) cost me $99 a year to run 24 hours a day, 6 days a week. That includes the occasional laser printing and occasional 2.1 speaker usage. So I turn it off more often.
-- Cell phone charger: .86 cents a year, but when charging it costs me $1.73 a year.
-- New coffee pot costs me between 5-7 cents to brew a pot of coffee and let it sit for a couple hours.
-- Toaster at 350-degrees costs me about 11 cents an hour.
-- Dell laptop charger costs me about $1.70 a year to keep it plugged in. It's about a penny and hour to charge the laptop's battery.
-- NOAA handheld weather radio costs 86 cents a year to run 24/7

In the end, it seems like it is only really worth the trouble to unplug the entertainment center when not in use and turn off the computer more often. Sure, everything draws power, but we factored in the hassle of it versus the cost.

We have been unplugging stuff around the house when we are not using it, and began to wonder how much we are saving.
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I currently own two Kill-a-Watt P4460 meters. This usage meter has a memory hold over, so I can use these at circuits that are switched on and off. When the incoming electricity is shut off, the previous hours of use are kept in memory. When the electricity is turned back on, the meter will continue from where it left off. The older P4400 model does not have this hold over circuit. The P4460 is a great addition to the P4400 for studying home electical usage.
6 Comments 357 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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The unit worked fine when performing testing the power consumption of a device for a limited amount of time. However, I ran into a problem when was using the Kill A Watt to test or monitor the power used on a device for an extended period of time. The unit is rated at 1875 watts ( Max Current 15 Amp and Max Voltage if 125 VAC )
In my particular case the receptacle on the Kill A Watt began to melt and turn brown when attached to a device that draws about 1,311 watts (117 Volts at 11.5 Amps ) which is below the maximum ratings of the Kill O Watt.
9 Comments 208 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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I really like these power meters, but some of them are not very accurate. I have tried 3 P4460s and several of the cheaper models and found that one of the P4460s read 86 watts when it should have been 80. That's off by 7.5%* and is way out of spec according to the manual (which says it is suppose to have .5% to 2% accuracy). I am returning that unit (the replacement I bought reads 83 watts which is better). Some of the other units were off too, but not by as much. Otherwise this is a nice unit but could include an optional short power cable which makes it much easier to handle and use. I like the fact that this unit does not lose readings when power is lost.

* (86-80)/80=7.5%
14 Comments 175 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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I give it **** because it could use a few improvements.
NOT because it didn't perform as expected.

Bottom line - great device. Works exactly as advertised.
I would recommend it to anyone interested in getting a
handle on actual electricity consumption and costs.

Best feature: The ability to enter your own actual cost per KwH
as taken from your utility bill.

Worst Feature: No battery backup for reading the collected data once
unplugged from the wall outlet. You have to plug the unit
back into the wall outlet to read the collected data.

Suggestions to the manufacturer:

1. Add a battery so the display can be read when not plugged in.
2. Include a short 12-14 inch extension cord so that you don"t have

crane your neck when reading the device while plugged into the wall

outlet. Some outlets are only 12-24 inches off the floor.
3. Make it 110/220 capable for 220V appliances.
4. Add a memory feature with a USB port to download and plot the data
over time in a spreadsheet.
5. Keep the price the same :-)
22 Comments 485 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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Please read this entire review. There is an eye-opening surprise to the use of the P4460.

My office has been experiencing frequent partial power outages. Although we have a couple of uninterruptible power supplies (UPS) that are supposed to power the servers, telephone system, and a couple of administrative work stations in the case of power outages, we are finding that the battery back up supplies are simply shutting down without providing any power whatsoever to the hardware. We soon realized what was happening was that we had each UPS unit completely overloaded with too much equipment, so when the UPS battery was supposed to kick in, the UPS units would simply shut off completely, and we would lose all power.

Accordingly, I ordered the P4460 to take power readings of each piece of hardware so I could evenly distribute the power requirements over three different UPS units, thereby not resulting in overloading any one UPS.

Although each piece of equipment had a power consumption rating on its label, what I discovered with the P4460 completely shocked me. When each piece of equipment is powered up, there is a VERY sharp spike in power consumption, and the hardware's use of electricity reduces when the unit is up and running. For example, the phone system's video monitor power use was rated at 6 Volt Amps (VA), but when it powered up, it spiked to 85 VA. Likewise with Amps. Idle power was rated at 3 Amps, but spiked all the way to 68 Amps on startup. I found this to be the case with every piece of equipment. One server's idle power rating was 0.97 Amps and 90 VA, but on startup it jacked up to 1.92 Amps and 247 VA.
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3 Comments 126 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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