Last Updated: July 3, 2019 (Refresh Now)
P3 P4400 Kill A Watt Electricity Usage Monitor
Last Updated: July 3, 2019 (Refresh Now)
8.2
SCORE
/10
Total Reviews
1000
Old Reviews
0
Unverified
35
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LCD
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Review Analysis - 965 recent, verified reviews
Detailed Mode
Product Reliability
134months, stopped working, working, month, lasted
+25%
-75%
" ... I m grading this unit as a fail, because of the fuse and because with the technology we have today, there is no excuse for using fuses when circuit breakers are available, and even auto-resetting circuit breakers! ... "
" ... It only lasted about 2-3 weeks. ... "
" ... Died after only using it a month. ... "
" ... This meter worked great, until it abruptly stopped working in less than 6 months after purchasing it. ... "
" ... Device broken after 3 months. ... "
" ... It worked for about 2 months and then stopped. ... "
" ... Stopped working after 3 months. ... "
" ... Lasted 3.5 months. ... Just died while I was sitting here. ... Not sure what happened. ... "
Power Consumption
127electricity, usage, power consumption, appliances, much electricity
+96%
-4%
" ... This product was able to allow me to make a power consumption chart of all the "Normal" devices I leave plugged in during the day and not turned on. ... "
" ... Works well, several options to monitor power usage. ... "
" ... Really helps control energy bills. ... "
" ... better safe than sorry about electricity ... "
" ... At our business following the hurricane power failure we had to run generators for 5 days and a home generator for 4 days. ... "
" ... Easy and simple to monitor the electricity consumption of my desktop PC. ... "
" ... Already own one of these, and I wanted to get two more (one to go into my RV where power budgets are very important). ... "
" ... It has helped me drop my monthly kilowatt power usage by more than 800 kilowatts. ... "
Ease of Use
80easy, simple, simple to use, use, easy to read
+96%
-4%
" ... Easy to understand. ... "
" ... It's pretty simple to use and gives you a lot of information about whatever it is you've plugged into the device. ... "
" ... easy to use. ... "
" ... It is very easy to read and understand. ... "
" ... Its easy to use seems reliable. ... "
" ... Used it all over the house, works best, easy to use. ... "
" ... works as it should, made it easy to track power use. ... "
" ... Simple to use and easy to configuration ... "
Price
37money, worth, waste, saved, great product
+81%
-19%
" ... It is well worth the money. ... "
" ... Really good value. ... "
" ... A handy gadget at a decent price. ... "
" ... it's never missed a beat. ... "
" ... Worth for the price ... "
" ... So thanks to it I saved a lot of money from buying a new one. ... "
" ... Definitely worth $20. ... "
" ... If it keeps working then the price was a bargain IMO. ... "
Display Clarity
35read, lcd, flashlight, led, backlit
+49%
-51%
" ... Overall it's working great, but I wish the display had a backlight. ... The display is difficult to read from the side. ... "
" ... Now display is dead . ... "
" ... Does not let electricity through and nothing on the display. ... "
" ... Poor LCD readout, no light to see what the numbers are, no save feature so once you unplug, you lose everything . ... "
" ... Does not let electricity through and nothing on the display. ... "
" ... Nothing shows on the screen, and there no power is going to the appliance. ... "
" ... i like it, but 2 things could be better, it apparently doesnt have a back lite display which makes things difficult, and also for some reason i had to really force the plug into it because of the 3 third hole, not sure what was up with that but i almost couldnt get the plug in. ... "
" ... i like it, but 2 things could be better, it apparently doesnt have a back lite display which makes things difficult, and also for some reason i had to really force the plug into it because of the 3 third hole, not sure what was up with that but i almost couldnt get the plug in. ... "
Marketplace
34described, works, exactly, advertised, stated
+94%
-6%
" ... No issues works as advertised ... "
" ... Just as Described ... "
" ... Works as advertised. ... "
" ... Works as advertised. ... "
" ... Works as stated ... "
" ... Exactly as expected. ... "
" ... Everything stated works exactly as described. ... "
" ... Works as advertised. ... "
Device Compatibility
31device, devices, plugged, wattage, watt
+87%
-13%
" ... It's pretty simple to use and gives you a lot of information about whatever it is you've plugged into the device. ... "
" ... I discovered that the biggest culprit in my home was my television, at 250 W. My tower desktop computer was surprisingly lean, at 93 W. The desktop computer would still draw 6 W even when turned off. ... "
" ... I was happy with this neat little device. ... "
" ... I picked this up for testing how many watt's i was pulling with my PC, turns out I was also very interested about how many watt's other items around my house were pulling ... "
" ... Either give it to someone else or use it for monitoring something like your PC. ... "
" ... Bought this as a quick solution to checking my power math vs actual power usage of my workstation PC. ... "
" ... Handy for using with a PC / computer to see what kind of wattage you're using. ... "
" ... I love these devices! ... I currently have 4, two in place in front of UPS's that keep my server & network equipment up and my personal desktop up. ... "
Ports
29wall, outlet, plugged, outlets, socket
+52%
-48%
" ... Just plug it into the wall outlet and plug whatever you want to measure into it. ... "
" ... just received it today and already measure all my outlets / devices in my house. ... "
" ... I use a 3’ extension cord with this so I can easily check appliances or anything else that is connected to an inconvenient outlet ... "
" ... Simply plug this device into the wall, then plug in your appliance. ... "
" ... Plug it for a week. ... "
" ... Also handy to check other things around the house such as how much power my Gaming Pc's draw from the outlet. ... "
" ... My desktop computer is currently plugged into it and it's drawing less power than I'd thought it did - even with the monitor and printer added. ... "
" ... Provides various information on any device that you plug into a wall outlet. ... "
Product As Described
28described, works, exactly, advertised, stated
+100%
" ... Works as advertised. ... "
" ... It works perfectly just as advertised. ... "
" ... Works as advertised. ... "
" ... Everything stated works exactly as described. ... "
" ... I've had it for a year and a half now and it's still working as advertised. ... "
" ... Worked as described ... "
" ... Works as advertised! ... "
" ... Works as advertised. ... "
Accuracy
25seems, accuracy, multimeter, compared, verify
+92%
-8%
" ... Good meter seems to be accurate ... "
" ... Clear to read and as accurate as expected. ... "
" ... This one seems to be reasonably accurate, and more than accurate enough for my current need. ... "
" ... This one seems to be reasonably accurate, and more than accurate enough for my current need. ... "
" ... Does all I needed, accurate and easy to use. ... "
" ... Seems pretty much accurate but cannot verify. ... "
" ... Voltages seem to be accurate when compared with a multimeter. ... "
" ... Accurate when compared to calculations. ... "
Build Quality
25pin, months, ground, feels, working
+20%
-80%
" ... broke within 3 months. ... Poorly made item. ... "
" ... Hard to push and pull out. ... "
" ... After a few months of working it broke. ... "
" ... The ground pin on the 4400 came off. ... I opened the unit up and cannot tell if the ground pin is screwed in or soldered. ... That said, it's a little unnerving to have your meter "fall apart". ... Update: After further examination, it appears that the ground was press fitted into the little circuit board. ... "
" ... Then this weekend it broke down. ... "
" ... Then this weekend it broke down. ... "
" ... It broke within about 4 months of use. ... "
" ... Broke after just 3 weeks of use. ... "
Returns
21return window, replacement, refund, died, days
+10%
-90%
" ... Just outside the return window. ... "
" ... I'm leaving this review because I'm trying to find out how to the return this defective device, which I still haven't found out how to do ... "
" ... Dead when return window just closed! ... "
" ... No way to contact the buyer to ask for a refund or a replaccement ... "
" ... Died a few days after return window closed. ... "
" ... Unfortunately, it is now outside the return window. ... "
" ... I was unable to return/exchange this due to the return window being closed. ... "
" ... Can't return these now since I couldn't test these in time. ... "
Battery Life
19battery backup, charge, power, solar, meter
+89%
-11%
" ... Good for detecting loads draining our batteries (we live off the grid). ... "
" ... The unit is easy to use but if you are using it to track Kwh be aware that its not battery backup or has Non-volatile memory. ... "
" ... this thing works great i use it on my battery charger lets me know when in maintain mode. ... "
" ... We are charge .0963 cents per kilowatt hour. ... "
" ... I’m able to determine how much it cost me every month to charge my car every day. ... "
" ... While charging the car battery pulls 1400 Watts. ... "
" ... We are charge .0963 cents per kilowatt hour. ... "
" ... Works great, if you have a generator or a solar battery bank you need this meter. ... "
Cables
16plug, cord, outlet, use, wall
+75%
-25%
" ... Using my line splitter and amp clamp I verified the amp draw was correct. ... "
" ... I use a 3’ extension cord with this so I can easily check appliances or anything else that is connected to an inconvenient outlet ... "
" ... I also recommend ordering a short extension cord at the same time so the device can be better positioned for monitoring, and so the shape of the device isn't a factor in where you can use it. ... "
" ... If you do this make sure the extension cord you use is proper Guage and length to handle whatever you are plugging in to test. ... don't use a 50ft or 100ft 18 or 16 Guage cord to test a 1200watt gadget. ... "
" ... Simply plug in the cord to the unit and get the reading. ... "
" ... I hooked it up to an extension cord to monitor the whole entertainment system and found it to be much cheaper than I expected. ... "
" ... Bought a 6in extent ion cord for each one I bought. ... "
" ... After using this, I would highly recommend getting a 3 or 6 foot grounded extension cord so you can use the meter on one receptacle and where you can reach/see. ... "
Charging
16charge, meter, electric, solar, measure
+88%
-13%
" ... used it to prove that my phone charger can be left plugged in without using any power. ... "
" ... We are charge .0963 cents per kilowatt hour. ... "
" ... Found that the plug to one of the lights, the smart tv, the surround sound system, and my sister's laptop charger were using enough energy to make a noticeable difference in the electric bill. ... "
" ... I pay their electric kWh rate for charging my car and use the meter to measure use. ... "
" ... I used this on my Prius Prime charger, it took 6.1 kWh to charge @$0.144 /kWh from zero charge @ 50 degrees room temp. ... While charging the car battery pulls 1400 Watts. ... "
" ... Bought this to meter my Ford Energi charging. ... I’m able to determine how much it cost me every month to charge my car every day. ... My charger is only 13 Amps and the max for this meter is 15 Amp. ... "
" ... Alarm clocks, phone chargers, toothbrush chargers and the pet fountain are all very light power users and I might have wasted more money on a timer than I would ever see in utility savings. ... "
" ... We are charge .0963 cents per kilowatt hour. ... "
Capacity
15around the house, house, used, small, home
+93%
-7%
" ... Whole neighborhood can use just one. ... "
" ... The other two I've been using around the house. ... "
" ... Used it all over the house, works best, easy to use. ... "
" ... I have use them both at work and at home and had relatives homes. ... "
" ... They have an outside outlet nearest where I park my car. ... "
" ... Bought mainly for generator use but will be handy everywhere at home. ... "
" ... Now I know what's hogging all the electricity in the house. ... "
" ... I have used this to monitor use of items around the house. ... "
Features
14features, lights, lighting, appliances, watts
+86%
-14%
" ... small lamp with led bulb-9 watts ... "
" ... I bought this primarily to test the watts drawn by LED grow lights, but it works on many other appliances of interest. ... "
" ... With this product, I figured out what lighting options were the cheapest to use. ... "
" ... I love it--I can check out how much each appliance/Christmas lights/etc. ... "
" ... Works exactly as advertised and I really like it, but it is missing one vital feature . ... "
" ... Like Noah's Ark, I bought two of each light/bulb to try. ... It has two switches. ... "
" ... Use it to check the actual usage of LED lights and other appliances. ... "
" ... There are now many alternative brands with more features. ... "
Fit
12meter, tight, ground, stick, plugs
+33%
-67%
" ... 2017 GSXr 750 doesn't stick out far enough axel nut sticks out further. ... "
" ... That said, it's a little unnerving to have your meter "fall apart". ... "
" ... After 15 minutes, the fuse popped. ... "
" ... Hard to push and pull out. ... "
" ... for two months, then the grounding prong broke off ... "
" ... Then this weekend it broke down. ... "
" ... Works ok used 5 times till the cheap hollow ground plug broke off in the duplex. ... "
Delivery
11package, arrived, tool, product, opened
+82%
-18%
" ... Recieved in a timely manor. ... "
" ... Package arrived intact. ... "
" ... Then why not the 5 star - for the delivery issue. ... "
" ... This is a great tool in determining actual current demand, usage, and voltage delivered. ... "
" ... Arrived fast and as expected ... "
" ... Product has worked well, provided the information that's advertised to from the time I opened the box. ... "
" ... I have one in every tool box! ... "
Size
11works, portable, generator, use, nice
+91%
-9%
" ... Bought mainly for generator use but will be handy everywhere at home. ... "
" ... It's not portable, but it works well. ... "
" ... Handy little gadget, real easy to use. ... Used to get wattages to get an idea what size generator I need. ... "
" ... We love this tool and always keep it handy. ... "
" ... A must have piece of equipment for portable solar systems . ... "
" ... Works great very handy item to have ... "
" ... Nice small form factor, nice selection of info. ... "
Setup
10simple to use, simple, power, instructions, install
+80%
-20%
" ... Simple to use and easy to configuration ... "
" ... Simple operation easy to use without having to mess with wiring. ... "
" ... Easy to install and monitor your power consumptions. ... "
" ... Easy to understand instructions. ... "
" ... It's pretty simple to use and gives you a lot of information about whatever it is you've plugged into the device. ... "
" ... Simple, self explanatory, and easy to use. ... "
" ... Easy to use - just plug it in, and plug your device into it to track how much power the device uses. ... "
Overall performance
10speed, watts, turned, medium, high
+90%
-10%
" ... I bought two Kill A Watt units to speed up the task and it was well worth it. ... "
" ... Easy to use and does the job. ... "
" ... Works really well. ... "
" ... Given my configuration, sure, It gets the job done, but if you can spend more for a better quality device that does the same thing, get that instead. ... "
" ... I discovered that the biggest culprit in my home was my television, at 250 W. My tower desktop computer was surprisingly lean, at 93 W. The desktop computer would still draw 6 W even when turned off. ... "
" ... Does an excellent job. ... "
" ... Does the job. ... "
" ... Does the job. ... "
Design
9little, gadget, feels, cool, like
+67%
-33%
" ... Better design to have the plug extendable. ... "
" ... Cool little gadget . ... "
" ... Feels like it's made as flimsilly as before. ... "
" ... Cool little gadget. ... "
" ... Appears to be of good quality though. ... "
Defective Delivery
7product, damaged, poorly, package, opened
+29%
-71%
" ... This thing is a piece of junk or my item happened to be defective. ... "
" ... Now dead and I am left with a broken product. ... "
" ... This unitI had for maybe 2 months but was only used for maybe 2 weeks and is defective. ... "
" ... Poorly made item. ... "
For Running
6run, much, things, help, determine
+83%
-17%
" ... luckily i don't have to run them long. ... this is handy device to help you determine how much things acutally cost to plug in and run. ... "
" ... And how much they cost to run per hour. ... "
" ... The system was running well within specification of the P4400. ... "
" ... I'm interested in knowing this information because I'd like to go off grid and this would help determine what items could be running simultaneously from a power inverter. ... "
Controls
6see, buttons, display, well, time
+50%
-50%
" ... This product only worked for three weeks and stopped working a few moments after pressing the buttons to see the information on the display. ... "
" ... i like it, but 2 things could be better, it apparently doesnt have a back lite display which makes things difficult, and also for some reason i had to really force the plug into it because of the 3 third hole, not sure what was up with that but i almost couldnt get the plug in. ... "
Software Platform
6windows, interface, good, device, amazon
+33%
-67%
" ... For what it does, shouldn’t be more than $10 and I shouldn’t have to google how to use your product, and why doesn’t this have a battery for the display? ... "
" ... Contacted P3 support via email, phone, Facebook nearly a dozen times, they NEVER RESPONDED. ... "
Keyboard
6backlit, would, wish, though, really
+67%
-33%
" ... I really would have liked a backlight and perhaps a way to hang it (so I could keep looking at it, at my desk), but it is a nice product for the price. ... "
" ... Would have been easier to use if the plugs both came out of the back and if the display was backlit. ... "
For Fun
5+100%
" ... another fun tool. ... "
" ... As advertised, fun to see what things draw. ... "
" ... this has been fun to use so I know what the true Wattage is. ... "
" ... Love the Kill A Watt, it is useful and fun. ... "
" ... Love the Kill A Watt, it is useful and fun. ... "
Sound Quality
5watt, stopped working, sound, like, died
+40%
-60%
" ... After that it started making a buzzing sound, and died about two days later. ... "
" ... After 5months it made a loud clicking noise and stopped working. ... "
" ... After 5months it made a loud clicking noise and stopped working. ... "
Cable Length
5use, outlet, wall, plug, guage
+100%
" ... If you do this make sure the extension cord you use is proper Guage and length to handle whatever you are plugging in to test. ... don't use a 50ft or 100ft 18 or 16 Guage cord to test a 1200watt gadget. ... "
" ... I use a 3’ extension cord with this so I can easily check appliances or anything else that is connected to an inconvenient outlet ... "
" ... You can easily plug this into a standard wall plug and plug a computer cord or any electronic devices plug into it and you can read different voltage units, such as watts. ... "
" ... However, I recommend you purchase a six foot 12gauge extension cord to use with the monitor. ... "
" ... Just plug it into the wall outlet and plug whatever you want to measure into it. ... "
Cooling
5little, gadget, refrigerator, heater, etc
+80%
-20%
" ... Have five, 250 watt space heaters strategically placed in my motorhome, to protect it from freeze damage in cold weather. ... "
" ... Cool little gadget . ... "
" ... A cool tool. ... "
" ... Cool little gadget. ... "
Storage
5freezer, fridge, used, use, takes
+80%
-20%
" ... To measure the cost of running my refrigerator, I divided the time monitored, by the kilowatt hours consumed, and discovered it used an average of 225 watts. ... I now realize I need to buy a new refrigerator. ... "
" ... Works great, but I actually haven’t been able to really use it yet because it takes up more space than I have on my outlet ... "
" ... A must have for the motorhome while boondocking to keep on eye on how much juice the appliance is using. ... "
" ... very nice to see what appliance was sucking the most energy ,found out my old 3 cu.ft. ... freezer was sucking more power than my full size fridge and got rid of it ... "
Comfort
5little, like, much, meter
+40%
-60%
" ... Impossible to read if you wear reading glasses, you will need them. ... "
" ... That said, it's a little unnerving to have your meter "fall apart". ... "
Memory
4would, one, nice
+50%
-50%
" ... The only difference between this and the P4460 is there's no memory on this one. ... "
Coffee
3maker
+67%
-33%
" ... The Kuerig coffee maker was unexpected though. ... 1276W while making coffee. ... "
" ... With this, we found the culprit—-our beloved instant gratification Bunn coffee maker! ... "
Device Stand
3plugged
-100%
" ... I just unpluged it and found it does not store the imformation .I have one pluged into my big refredg on t he wall. ... "
" ... Won't even turn on when plugged into the wall. ... "
" ... Won't even turn on when plugged into the wall. ... "
Drying
3+33%
-67%
" ... I was freeze drying and it died in the middle of the cycle. ... "
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Specifications
Display
Type: LCD