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Kill A Watt Electricity Usage Meter P4400

  Customer Reviews (7)
Item code Brand name Model number
P3IP4400 P3 International (Kill-A-Watt) P4400

P3 International Logo

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P3 International
Kill A Watt Meter

Use the Kill A Watt Meter to discover where to reduce your electrical consumption and start saving money today! Plus lower your carbon footprint - WIN WIN!

P3 International's Kill A Watt Meter is a user-friendly power meter that allows people to calculate the cost to use their home appliances. With electricity bills being a big expense for families, this meter can help you take the first steps in finding out what appliances are actually worth keeping plugged in. It's pretty easy- just plug this meter into an outlet, and plug the appliance into the meter. The large LCD display will count consumption by the Kilowatt-hour, same measurement as what's on your electric bill. You can calculate your electrical expenses 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 (more energy efficient) refrigerator or if that old air conditioner is still saving you money.

These appliances that are left plugged in when not in use- ie. TV, air conditioner, computer - are called "phantom loads" and can account for up to 20% of your electric bill ! Just by using this meter, you can find out what are the energy hogs in your home, and start saving money right away - so easy! The best way to get rid of these loads is to put them on a power strip or a timer, so they are not taking up un-needed electricity all day long. So let the Kill A Watt Meter be your 1st step to saving money, and the environment, today!


  • For 60Hz/115VAC electrical service only - not for European or other international electrical service
  • LCD Display - Displays Volts, Amps, Watts, Hz, VA
  • Cumulative Kilowatt-Hour Monitor
  • Forecast Your Costs
  • 0.2% Accuracy
  • Operating Voltage: 115 V - 125 V
  • Max Current: 15 A
  • Max Power: 1875 watts
  • Share Your Findings with the World!

    Amazed by how much energy your refrigerator consumes or impressed by how little your brand new laptop uses while connected to the charger? Share your findings with the world on altE's 'Kill-a-Watt Database'! This altE community-run database allows everyone to share real-world data on how much specific models of electronics and appliances really consume. Enjoy!

    P3 International Logo

    Here are some tips from the altE staff

    • Can this meter be used in foreign countries?
      • This meter can only be used where the power supply is rated at 120V and 60Hz (e.g., North America). This device cannot be used directly in European electrical outlets.
    • All P3 International meters will operate at 108 - 125 VAC and 50/60 Hz.

    Write a review

    Understanding AC Metering

    I have not tested the device personally, but asked to read the Paloma Hill review by a friend.

    I read the review in which Hill measured the amps and volts used by a load and found the Kill A Watt meter to be reading low.

    That is probably because AC power is NOT the product ...
    Read the full review

    Kill-A-Watt does what is says...

    I run 6 computers for various reasons. As they do "procedures" off and on throughout the day & night, I always left them on and running.

    Using the Kill-A-Watt and a low cost software product, I turn each machine on just before their procedure, then off after it runs.
    Read the full review

    To save start here

    Every one wanting to save energy - just start with this great tool. Worth every penny.

    We managed to save 40% on electricity in our two person household:

    - unplug everything not necessary (thanks to the power meter)
    - new refrigerator that uses a third (thanks to the p...
    Read the full review

    Great Device

    I reecently bought one of these to check the power useage of my power strips and my refridge, holy cow I think I know where I am wasting a bunch of energy now, I wish I could hook this thing up to my A/C but all in all this unit will preform to specs and is a great tool to have if you are in the ...
    Read the full review

    not accurate

    I have a high quality multimeter that reads AC amperage and voltage very accurately and there is correct relationship between the Amperage * voltage result and the Kill a watt power meter result. In fact, the Kill a watt own amperage reading times voltage is also not matching it's wattage rea...
    Read the full review

    View all reviews (7)

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