It's supposed to fluctuate like that when fired.
Like others have said, it works as good as or better than you should expect for being a $45 (budget) 50 watt device.
The pre built coil that says .5 could actually be .61 which will read .7 on the STick, doesn't mean it's inaccurate.
That being said when/if you start making coils I'd highly recommend still checking them with a reliable multimeter and not purely relying on the I Stick, especially to help get your builds down to a perfect science.
Like others have said, it works as good as or better than you should expect for being a $45 (budget) 50 watt device.
The pre built coil that says .5 could actually be .61 which will read .7 on the STick, doesn't mean it's inaccurate.
That being said when/if you start making coils I'd highly recommend still checking them with a reliable multimeter and not purely relying on the I Stick, especially to help get your builds down to a perfect science.
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