Driven by a single 18650 battery, Coil Master 521 mini Tab is a handy compact device for vapers. It allows users to use it as a build deck and is able to dry fire their coils down to 0.1 ohm ...
The Amazing 521 Tab! You can fire your coil, to test fire, or while your pinching/adjusting with ceramic tweezers. You can check resistance, voltage, voltage drop, work out hotspots, so many uses! Even vape it if you want to!
Features:
Ohm Meter
Voltage ...
