Super Low Ohm Reader

So Im planning on building a dual 18650 box and leaning towards series simply because I already build .2ish on my tubes and see it easier to get more wattage with a series than building below .1 on a parallel. But this got me to thinking. I know a lot of unreg boxes are parallel and Im sure quite a few are for more battery but what about guys that are building sub .1ohm. What are you using to measure resistance? Any vape ohm reader Ive seen generally has at least a .03 or so variance and even cheaper multi meters have variances? Do you guys go out and spend $100s on high end multi meters?

most who build that low use a fluke meter http://www.amazon.com/Fluke-114-Electrical-TRMS-Multimeter/dp/B000IZ9FD0

Fluke DMMs are unable to read resistances down to the proper resolution for readings below 0.1Ω (resolution to the hundredths and thousandths are only available for kilohm and megohm readings). USA Ohm Meter claims accuracy to ± 0.018Ω (no stated count). I have two (Ultimate and 3D printed) which generally read within ± 0.25Ω of one another. Another meter that I have been using for builds below 0.1Ω with excellent results is the Scotts Mod ORDTS.2.

always benchmark your 510 meters against a bench meter like an instek. then you know your plus minus.

What you need is a proper milliohm meter.
I use the VC480. Search for it on ebay, about $100 shipped.

I find its accuracy pretty decent for the price.

So instead of saying you're vaping on a .15OHM build you can say 150 milliohm build.
This meter is essential for building on non hybrid attys as well.

http://www.shop.usaohmmeters.com/main.sc

They advertise accuracy +/- .018 ohms. They also sell single and dual 18650 fire meters as well.