How accurate are ohm readers ?

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Horizon Vapes

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My ohm reader is out of batteries so I've been using my istick 100w to check my ohms but it doesn't seem to be accurate. For instance for my tank it reads .26 on my .2 coil. Are all devices accurate on ohms. I ask this cuz i like to super sub ohm, for instance I did a build that usual ohms out to .1 and on the istick it reads .08. (Yes I know about ohms law and safety) .
 

DavidOck

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In two words - not very.

Unless you have a high end DMM with a current calibration sticker.

Accuracy used to be rated as a percentage of full scale. Let's say it's 0.5%, fairly typical for low end DMMs. The lowest ohm scale is generally 200 Ω.

Even then, a meter may fall with cal specs - to either side of nominal. One could be +0.5, one -0.5, so a 1% difference even though both are currently within specs.

And meters built into our mods? Have many, and have yet to see a cal sticker.

Knowing about Ohm's Law and safety is good. Obeying the law and vaping safe is better.
 
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