521 Tab Mini V2

Driven by a single 18650 battery, the Coil Master 521 mini V2 is a handy compact device for all vapers. It is a multi-function device that acts as an ohm meter, voltage drop checker, rebuilding station and firing test station. The 521 mini V2 is able to measure the resistance down to 0.05 ohms, and dry fire coils down to 0.1 ohms. Reverse battery protection and short circuit protection are also built in for safety.

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