Robert, Exeltech purchased two cartons of the Kill-A-Watt meters to use for relative power tests (pacing off the room for area sort of thing). We found them to be accurate within 2-3% when compared to our multi-thousand dollar power meters that we calibrate to NIST standards every year. We've not done exhaustive comparisons .. but for the price, we do find them acceptable.
Dan --- On Wed, 8/12/09, robert ellison <[email protected]> wrote: From: robert ellison <[email protected]> Subject: Re: [RE-wrenches] power factor To: "RE-wrenches" <[email protected]> Date: Wednesday, August 12, 2009, 8:59 AM I have used the Brand power meter until someone absconded with it. I understood that the original "Kill a watt" meter was real inaccurate. So i have stayed away from it. Might that have changed? Bob On Tue, Aug 11, 2009 at 12:35 PM, jay peltz <[email protected]> wrote: HI All, For plug in watts/PF meters is there a better or more accurate one that anyone recommends? I've tried the Kill-a-watt and seems to work and be pretty accurate, but haven't compared it to many others. I've been testing some CFLS vs LED and the PF is way better on the LED. For us off grid folks its pretty interesting. thanks, jay
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