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 enlarge | Brand: P3 International
Category: CE
List Price: $52.43
Buy New: $16.12
You Save: $36.31 (69%)
New (74)
Avg. Customer Rating:  333 reviews
Color: Ivory
Media: Electronics
Autographed: No
Memorabilia: No
Shipping Weight (lbs): 2
Dimensions (in): 11.8 x 3 x 7.3
Weight: 5 oz.
Dimensions: 5 1/8" X 1 5/8" X 2 3/8"
Warranty: 2 years
ETL Approved
Legal Disclaimer: Warranty does not cover misuse of product.
MPN: P4400
Model: P4400
UPC: 751549044009
EAN: 0043430000059
Availability: Usually ships in 3-4 business days
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| Customer Reviews:
 THIS SAVED ME $35.00 A MONTH December 27, 2005
25 out of 25 found this review helpful
I bought this and figured out my 25 year old refrigerator was using over $50.00 a month on electricity. I went out and bought a new refrigerator that only uses $15.00 a month. Now I am saving $420.00 a year on electricity. THIS IS A MUST HAVE DEVICE.
Kill a Watt Meter September 29, 2005
23 out of 23 found this review helpful
Inexpensive but full featured product which seems well made. Excellent for ad-hoc metering of electrical consumption of most appliances & electronics. I purchased it to measure consumption of the amplification & lighting equipment used by our six member band. Also to test the voltage at the various places we perform. Much cheaper than the "Professional" power strips costing $100 + which do the same thing.
Works as expected September 1, 2005
22 out of 22 found this review helpful
Plug it in and then plug in your device and it'll tell you how many watts it's using. Leave it plugged in and it'll tell you how many Killowatt hours you spend on that device, on average. This is useful for finding out how much your computer is using, for example. I found that my main computer varies from about 100 watts to 250 watts depending on what I'm doing. I also noticed that even when it's turned off it uses 15 watts of power.
If I could find any negatives it's: 1) can't do 220 Volt outlets 2) can't download the information to a computer. 3) have to turn off the device to plug it in. i.e. I have to turn off my computer, plug it in to Kill-a-watt and then plug that into the wall.
But I knew these things before hand.
Great Gadget, Excellent for for Monitoring Energy Usage January 16, 2006
31 out of 34 found this review helpful
There were two primary reasons that I purchased the Kill-A-Watt: 1) to measure the [questionable] energy savings performance of the Power Planner by Energy Smart (see review) 2) to disprove the stated 2900 Watts on my Bellissima Ionic Volcano Hair Dryer (see review). Tertiary reasons included a general interest in energy savings. As it turns out, the Kill-A-Watt demonstrated that both aforementioned devices did not live up to stated manufacturer claims.
The Kill-A-Watt plugs into any typical grounded three-prong receptacle. It also has a receptacle so it acts as a splice, presumably measuring voltage and current to determine power in watts (ohm's law V=IR, Power=VI). In addition to measuring power, voltage and current in real-time, it can also measure kilowatt hours (kwh), via an imbedded timer. This unit, kwh, is the measure by which your electric utility company bills you.
In general, the Kill-A-Watt is extremely easy to use. There is a large LCD display indicating the value of interest. The digital readout and buttons make it extremely easy to navigate through the various functions.
Particularly interesting is observing the difference between the stated wattages and realized wattages of various consumer devices. It is also interesting to watch the energy creep caused by thermal factors (in p=ir^2). FYI, for typical resistive elements "R" goes up as temperature increases.
As you can see, the Kill-A-Watt allowed me to disprove various manufacturer claims.
Measured Wattages:
Belissma 2900 Watt Hair Dryer
Ionic Hair Dryer (aka Volcano) ...1525 Watts
ConAir 1875.............................1515
Hair Made 1875........................1540
Andis ProStyle .........................1250
Other Consumer Devices:
Heated Towel Warmer (stated 100 watts)....... 131
Lights:
Sunbox Sunray Full Spectrum Lightbox (stated 120 watts)....123 watts
Lights of America Fluorex Outdoor Lamp (stated 65 watts).....65 watts
Lightwitz 30 watt light bulb..... 30 watts
Lights of America 200 Watt Equivalent Compact Fluorescent (stated 42 watts)....45 Watts
It is important to note that the Power Planner by EnergySmart was intended to save money on devices with older electric motors. In my review of the Power Planner, I outlined the test results using the device on my parents 40+ year old secondary refrigerator. Sadly, the Kill-A-Watt showed that there was no realized difference using the Power Planner over multiple 24 hour periods.
If you have any interest in energy conservation/savings or are questioning manufacturer claims, I would highly recommend that you purchase the Kill-A-Watt. It is great for measuring instantaneous power, current and voltage, but also power consumption over a period of time.
fun little geek toy, great for tightwads, useful for accounting too. March 22, 2006
17 out of 17 found this review helpful
I own two of these toys. I bought my first to run around the house measuring power consumption of my other toys. It was very useful for reducing my home energy consumption, which i did by almost 50%, without suffering. I bought the second so that i could, in combination with my first unit and some good power strips, meter all power consumed by my home office (It is not in proportion to the square feet of my home office/total sqft, the usual metric used in accounting). The added electricity savings of knowing what my high consumption appliances really were, paid for the first unit in a week. My tax savings generated by accounting for my office's true power consumption paid for the second unit in 2 months. My only complaint is that I can't reset them without unplugging them.
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