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| P3 International P4460 Kill A Watt EZ Electricity Usage Monitor | 
 enlarge | Brand: P3 International
Category: CE
Buy New: Too low to display
New (41)
Avg. Customer Rating:  49 reviews
Sales Rank: 96
Color: Gray
Media: Electronics
Autographed: No
Memorabilia: No
Shipping Weight (lbs): 1
Dimensions (in): 1.5 x 2.3 x 5
Legal Disclaimer: Warranty does not cover misuse of product.
MPN: P4460
Model: P4460
UPC: 751549044603
EAN: 0751549044603
ASIN: B000RGF29Q
Availability: Usually ships in 1-2 business days
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| Features:
| • | Shows the operating costs of your household appliances | | • | Accurate within 0.2% | | • | Calculates cost and forecasts by week, month and year | | • | Displays eight critical units of measure on the large LCD display | | • | Built-in battery backup |
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| Editorial Reviews:
Product Description
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.
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| Customer Reviews: Read 44 more reviews...
 P3 International P4460 Electricity Usage Monitor July 23, 2007
101 out of 106 found this review helpful
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 :-)
 Product not working, tech support unresponsive December 28, 2007
43 out of 58 found this review helpful
The Kill-A-Watt I was shipped was dead on arrival - the LCD display did not work. I tried calling customer support several times but would always get voicemail - I left a message, but never received a callback. Then I tried emailing them, hoping they would be more responsive there - but again, no response to either of my emails. So while this may be a very nice product, be aware that there are some lemons out there and you may not get any help from the manufacturer if you end up with one. Best to buy from a vendor with a good return policy, just in case.
 P4460 is great for electical circuits that loose power. October 18, 2007
39 out of 41 found this review helpful
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.
Nice but some flaws February 19, 2008
30 out of 30 found this review helpful
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.
My review of the P4460 Electricity Usage Monitor January 14, 2008
19 out of 19 found this review helpful
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.
If I had only used each piece of equipment's listed power consumption on its label, I never would have known about the power spikes on startup, which, when combined, will absolutely overload a UPS, even though the combined idle power consumption falls within the UPS battery backup tolerances.
The P4460 is a terrific little unit and can even be used for extended periods of time for accurate power readings on equipment that cycles on and off, such as refrigerator compressors.
It's a bit more expensive than its smaller cousin, but worth every penny. Provides several types of readings and comes with very detailed instructions on how to use it so even a complete novice who knows nothing of electricity can benefit from its use.
I give this little unit a solid 5 stars.
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