New CoilMaster 521 Mini TAB

Needed a replacement for my geekvape ohm reader and this was perfect. Accurate readings combined with being able to dry fire any coil I’ve built make this one a winner.

Build quality is decent, but a bit flimsy. Overall its good, just be careful putting on your RDA so its not too tight or you may risk having trouble getting it unscrewed from the reader and possibly breaking it.

Works great!!!!

Useless out of the box... you need specialty batteries I'm order for it to work :)It would be absolutely lovely to know the specialty item needs special batteries in order to work.... feel like I wasted my time waiting for it, as I now have to wait for another specialty item. Lame.

Yea if you're heating up coils you should know that high drain batteries are needed. Maybe you shouldn't be building coils. So now Are you going to Build for a device using Duracell's from Walgreens? t..And people wonder why there are battery injuries..It's a good tester , Highly recommended.But Some will sell this over 30.00 dollars and that is too much. Why not just buy a regulated Mod to test with at that point,SMH Come on people!!!..It's a Good device if the price is reasonable.If you don't know leave it alone..