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Old 12-09-2008, 08:28 PM   #1
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Kill a Watt


Has anyone tried a Kill a Watt? I want to compare power usage from different appliances. Is this an accurate meter?

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Old 12-09-2008, 08:37 PM   #2
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I have one and think it's pretty accurate. The only real comparison though I've made is the voltage compared to my fluke (volt meter).

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Old 12-09-2008, 08:40 PM   #3
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Kill a Watt


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Originally Posted by losttool View Post
Has anyone tried a Kill a Watt? I want to compare power usage from different appliances. Is this an accurate meter?
It gives very similar readings to my clamp meter, which is not a RMS meter, but should be fairly accurate.

The kill a watt is going to be as accurate as is necessary for any residential application imo.

Jamie
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Old 12-09-2008, 11:56 PM   #4
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The one I have is very close to the $800 Fluke I use at work. The Fluke was calibrated just a couple of months ago.

Rob
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Old 12-10-2008, 09:18 AM   #5
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I have one, and I think it's pretty accurate (tested against 100 watt light bulbs and 1500 watt heaters), except when measuring less than 10 watts (like when trying to measure the parasitic load from a wall wart, digital cable box, microwave oven clock, etc.).
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Old 12-10-2008, 11:05 AM   #6
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Originally Posted by losttool View Post
Has anyone tried a Kill a Watt? I want to compare power usage from different appliances. Is this an accurate meter?
Does it meet published specs for accuracy (if anyone publishes accuracy specs for this)?
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Old 12-10-2008, 07:08 PM   #7
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Thanks guys, I'm going back to Ebay to get a bargain.
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Old 12-10-2008, 10:35 PM   #8
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Kill a Watt


I just gotta ask, What the heck is a wall wart??
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Old 12-10-2008, 10:55 PM   #9
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A 'wall wart' is a transformer that plugs into a wall socket.

Cell phone charger, etc.

Rob

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