Features
- Electricity usage monitor connects to appliances and assesses efficiency
- Large LCD display counts consumption by the kilowatt-hour
- Calculates electricity expenses by the day, week, month, or year
- Displays volts, amps, and wattage within 0.2 percent accuracy
- Compatible with inverters; designed for use with AC 115-volt appliances
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Editorial Reviews
Product Description
Connect your appliances into the Kill A Watt, and assess how efficient they are. A large LCD display counts consumption by the Kilowatt-hour just like utility companies. You can figure out your electrical expenses by the hour, day, week, month, even an entire year. Monitor the quality of your power by displaying Voltage, Line Frequency, and Power Factor
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Customer Reviews Read 355 more reviews...
Excellent little gadget January 5, 2009
Ryan Galvan (Pensacola, FL)
This thing works amazing if you are looking for power hungry gadgets in standby or are just curious how much power a device uses
+ Inexpensive
+ Measures pretty much anything you could imagine, including Power Factor, which in helpful in adjusting the PF for your entire house
+ Actual kWh measurement is really helpful to easily calculate the monthly or yearly cost of a gadget
+ Very simple to use
- Screen definitely needs a backlight of some sort, trust me you will need a flashlight
- A battery backup would be nice, but not necessary, to store some information
Surprising how revealing this unit is...... January 2, 2009
R. Diamond (San Francisco, CA United States)
I didn't know that this was still available. It may encourage saving electricity. I plugged my son's PS3 into it. Just push the on button and watch the wattage jump.
catraveler December 29, 2008
kf6rai (Santa Barbara Ca.)
I purchased the Kill-a Watt P4400 a few years ago, and have used it numerous times to verify the power consumed by tv's,refrigerators, stereo equip., small A/C (less than 15amp). The only problem was a miss alignment of one of the reciptical pins, it was off center and the unit under test connector pin went down on the side instead of BETWEEN the recipticle contacts resulting in overheating the connector pin and partially melting some plastic. A slight adjustment and all is well. A good little tester!
Worked for a while December 29, 2008
Rich M. (Abington, PA)
2 out of 2 found this review helpful
I purchased this unit about 6 months ago. It worked fine,
giving me information about how much electric power was
being used by various items in standby and active modes.
I recently used it again and found it malfunctioning.
The various readings were ~ 197Volt, 33Watts & 1.3Amps with
nothing connected.
Ya get what ya pay for...
Great Product! December 28, 2008
F. David (Santa Rosa, CA United States)
This is a great product. It is convenient and very easy to use; and compared to my top-of-the-line DMM (HP), it has all the accuracy needed. I wish I'd had this years ago. If you have a breaker that often trips, this is the device that will identify the appliance that is the culprit.
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