P3 International P4400 Kill A Watt Electricity Usage Monitor

This product is very helpful. I used it the minute I got it. I now have 5 co workers also using one of these as well

By monitoring 53 desktop computers , 21 laptop computer and 53 desk lamps over a period of time it was shown that in one year at the July 2008 electricity rate with the units being turned on 24/7 would consume $16604.37of electricity. By running the units 9 hours a day 5 days a week the cost of electricity was only $4005.84 for a yearly savings $12098.53. I added an 18" electrical pigtail so I could read the meter a little better. This calculation is the galvanizing element that has brought to the front a GREEN movement in our company and to our division. We will save 64 tons of CO2 per year by not using over 82000KW of power for < a$25.00 investment.
The unit was sent in record time and worked 100%.

If you are an optimizer, interested in saving unnecessary power waste, this is a must buy. You can get the true power handling of just about anything in your house, and you can optimize your use of electricity. A must have for a geek.

Does a great job, I did not checked the accuracy with another multimeter but I suppose this one is accurate. I was able to check each device consumption in my house and see how much power is used on a long run... If you are curious like me, that's the perfect tools.

Very good tool for assessing appliance energy utilization. You can see current usage real-time. For freezers which cycle on and off, you can measure consumption over a day or week or any length of time.

I'd like to see either an illuminated readout or the ability to unplug and have the readings remain visable. It is tough to see usage when in a dark place.