So I wanted to get myself a Kill-a-watt. Being who I am, I wanted information regarding its accuracy, especially at low power draws. I found a comparison with a industry grade equipment (Fluke is about the best out there in handheld electrical meters). It’s not encouraging, so I thought about a more proper meter, but it’s not easy to find an actual power meter that is accurate at low loads, isn’t a hassle to install and doesn’t cost an arm and a leg.
What do you use? Am I overthinking it?
Edit: thanks everyone for chiming in! To clarify a few things:
- I wasn’t (at least initially) looking for a permanent installation on my home server, but rather a good instrument to measure things around the house once I’m done fiddling with the server.
- the comparison with Fluke was just to illustrate what kind of error we can expect from a Kill-a-watt. It would be nice to have a Fluke power meter, but there’s nothing I do at home would even come close to justify it. The kill-a-watt is such an old design and the company behind it seems to focus on cheap trinkets. I was just hoping to find something a bit better than what P3 offers. Wouldn’t mind paying up to $75 for the same features and better accuracy.
- I looked for a multimeter that measured power somehow as I need a better one that can measure capacitance too anyway. Didn’t find it.
Well, I’m an electrical engineer and I like tinkering. This wouldn’t be used solely to optimize my home server, I would use for other stuff around the house and projects I get into. So yeah, I’m willing to part with double what a killawatt costs if that means a better instrument.
Aight, well, then I’d say that you’ve answered your question as to whether it’d be worthwhile.
Oh, that was clear. Finding a more accurate killawatt is what eludes me.