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Availability:
In Stock.
Arrives
Tuesday, Nov 17
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At a glance
- Condition
- New
- Size
- Upgraded Edition
- Model
- P4400
- Dimensions
- 9.3 x 3 x 6.5 in
Features 5
- Choose from the Kill-a-Watt's four settings to monitor your electrical usage
- Features easy-to-read screen
- Large LCD display counts consumption by the kilowatt-hour
- Electricity usage monitor connects to appliances and assesses efficiency
- Monitor your electrical usage by day, week, month, or year
Specs 11
| Brand | P3 |
|---|---|
| Item dimensions L x W x H | 9.3 x 3 x 6.5 inches |
| Number of Items | 1 |
| Unit Count | 1 Count |
| Brand Name | P3 |
| Part Number | P4400 |
| UPC | 722537080323 |
| Manufacturer | P3 International |
| Set Name | 1 |
| Model | P4400 |
| Item Dimensions | 9.3 x 3 x 6.5 inches |
No specs match.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Tuesday, Nov 17
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
beware of using with inverter power... a few seconds of modified sine wave killed mine off
Size: Original version
The standard by which all other power meters are judged. Can't go wrong with one of these, buy one. at least, i THOUGHT you couldn't go wrong. But I just plugged mine into a 110v AC source which came from an inverter in a solar PV system, and the "modified sine wave" seems to have immediately fried it. It now is dead as a doornail. So this is a little easter egg for those who actually read the reviews on devices with scads of reviews. Beware of using with modified wave (cheap) inverters. Worked fine with my pure sine wave inverter. Wish there had been instructions noting that it requires a pure sine wave.
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Reviewed in the United States on July 14, 2017 by D. White
I am disappointed.
Size: Original version
I bought this in Oct 2017 and really have not used it much. Today I tried to measure the watt usage on a small AC unit. The ground pin on the 4400 came off. A call to tech support didn't help. They said it was out of warranty. I opened the unit up and cannot tell if the ground pin is screwed in or soldered. Not very strong in any event. I am disappointed. It should be noted that the ground pin is not connected to the circuit involved in the measurement. It actually just sits there. That said, it's a little unnerving to have your meter "fall apart". The ground pin should be substantial since it helps stabilize the meter while in use. Still disappointed. It may still work but that does not make my review any higher. Update: After further examination, it appears that the ground was press fitted into the little circuit board. Not good at all. There wasn't much holding it onto the circuit board. It was going to fail for sure.
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Reviewed in the United States on June 4, 2018 by S. Locke
Big fan - except that the UL certification isn't there anymore and there's no replacement/customer support available.
Size: Original version
Rightly so, a continuous load of 1600W (max is 1800w) managed to kill it. I've checked and it seems that thermal fuse is blown. I've sent an email for a warranty replacement, but I'm not optimistic. Update - no response after weeks. The products failure below it's rated design seems awfully suspicious. Especially given that the fuse in question is supposed to be reset when it cool down sufficiently. Seems like they cheaper out on the fuses. Be ready to treat these disposably.
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Reviewed in the United States on November 29, 2017 by Ryerson
They should rename these units disposable single use monitors, already fried 2
Size: Original version
They should put a disclaimer on these, they are NOT meant for continuous monitoring of anything greater than 1400 watts or so. This thing fried after 3 days of continuous monitoring of 1475 watts. Even though they say the max is 1875VA, it won't monitor that for long. If you put anything close to 1800watts thru this it will likely melt the unit or the fuse. What this can do is check how much wattage you are using for a baseline then disconnect it.
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Reviewed in the United States on March 17, 2018 by Steven Lee
Six years ago...
Size: Original version
I bought a P4400 in 2011. It showed which household items were power vampires, some using as much power off as on. I could switch them off with power strips or unplug them when not needed. By measuring the power consumption of internet-related equipment, I could estimate how much time a given UPS could give me in the event of a power failure. I kept a spreadsheet of wattage of various items under different conditions, to help future troubleshooting. When my internet speeds slowed down, the P4400 showed me the culprit. The power consumption of the $4 power supply of my VOIP telephone adapter was abnormally high. For the refrigerator, I measured KWH per day for a summer kitchen temperature and for a winter kitchen temperature. After that, the P4400 could show me if the refrigerator was still operating as efficiently, or maybe I needed to check for dust or ice. If a refrigerator wasn’t cooling, the P4400 was a quick way to see if the compressor was drawing current. Last year, I bought a smart charger for car batteries. It had no ammeter. Clipping in a multimeter would have risked a short, a disconnection, or damage to the meter. I plugged the charger into my P4400, and with the multimeter, I determined how many watts the charger needed for each amp out. Then I didn’t need the multimeter. By showing me input wattage, KWH, and time, the P4400 let me know output amps, amp hours, and charging time. The other day, my P4400 was in the engine compartment of a truck as I charged the battery. In case of an unexpected shower, the hood was up only three inches. In a sudden, heavy shower, enough drops blew through the crack to wet the P4400. It still gave credible wattage readings, but not KWH or amps. I bought another one immediately. The P4400 has proved its value. Update: Last year I bought an electric chainsaw. I finally got around to using the P4400 to see if the manufacturer's horsepower claims are true. Apparently so. It also showed me how much voltage I was losing by using 150 feet of extension cords. The flashing display of the P4400 warned me that the current could damage it if I ran the saw more than a few seconds. The manufacture recommends 14 gauge cord or larger. My cords aren't marked. To test, I used an electric skillet. Unlike the saw, it's a resistive load, and it doesn't draw enough current to endanger the meter. First I plugged the P4400 into an outlet and plugged the skillet into the P4400. I noted the voltage drop when I turned it on. Then I plugged an extension cord into the outlet and plugged the P4400 and skillet into the cord. I noted the voltage drop and the amps. I subtracted the voltage drop at the outlet from the voltage drop at the end of the cord to determine how many volts I was losing in the cord. Dividing that by the amps gave me ohms. In the cord, current runs through the hot and the neutral in series, so the path is twice the length of the cord. To get ohms per foot, I divided the ohms by twice the cord length. Knowing ohms per foot, I could look up the gauge online. My cords are 16 gauge. I can probably get 2.5 horsepower with them. I might get 2.75 horsepower if I upgraded to 14 gauge cords. I'm satisfied with 16 gauge.
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Reviewed in the United States on August 11, 2017 by Stephen Throop
Melted.
Size: Original version
I used it on my computer and it nearly melted. Computer was drawing 11 amps max and this device is rated to 15. Don't trust this with high currents for long amounts of time.
Reviewed in the United States on July 5, 2017 by James
Great for a little while, but don't recommend
Size: Original version
I don't "HATE" the product because it did work and do what I wanted, MY issue is the device suddenly quit working, and the makers have ingnored repeated attempts to contact. I would suggest some other brand.
Reviewed in the United States on April 16, 2018 by Jeff
Died after a week or so of use
Size: Original version
Completely died after a week or two of use. Nothing shows on the screen, and there no power is going to the appliance. Appliance still works fine plugging it in directly, without the Kill a Watt. Good thing I wasn't on vacation with fridge plugged into it, everything would have been spoiled.
Reviewed in the United States on January 5, 2018 by p&b