Coil Master TAB 521 Mini V2

Ohm Reader
Accessories Type
Tool Kits
Made In


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The Coilmaster 521 Mini V2 is an Ohmmeter designed as a fundamental tool for building your own coils for use in rebuildable atomisers. Featuring a 510 threaded, spring-loaded pin, this Ohms reader is compatible with a range of tanks and rebuildable atomisers.

Powered by a single 18650 battery, the V2 is lightweight and can be transported with ease. Also acting as a rebuilding station, this device has the option of switching between a meter reading and a firing station. So you can measure and check the quality of coils before vaping.

Featuring a variety of safety functions such as Reverse Battery Protection, PCB Heat Protection and Short Circuit Protection, the V2 is a durable and reliable piece of equipment. The inbuilt screen displays a clear readout of important data, including coil resistance and firing wattage.

With the ability to measure coil resistance down to 0.05 Ohm, and dry fire coils down to 0.1 Ohm, the V2 can be used with most rebuildable coils available on the market today.


  • 1 x Coilmaster 521 Mini V2
  • 1 x User Manual


  • Ohmmeter
  • 18650 Battery Compatible
  • Lightweight
  • 510 Connection Spring Load Thread
  • Coil Rebuilding Deck
  • Reverse Battery Protection
  • Short Circuit Protection
  • Battery Output Voltage Testing
  • Display Screen
  • 0.1 Ohm Resistance
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By Jay from Leicester

Great piece of kit (30 January 2021)

A must have for building plus it’s a great deck to build on,doesn’t slip at all on my table.
Well worth it

By Ned from Liverpool

Must have. (03 September 2020)

A item that all people who like coil and wick need. Serves as the ideal build station and a must for safety. Comes in a nice box and well packaged. I would recommend this product to anyone.

By KATHY from Bournemouth

Great handy tool (04 February 2019)

I bought this for coiling and rewicking. It really does make life simple. I used to put my deck onto my mod but many times just as I am screwing in coils my mod would slip and fall over so I had to start again. With my 521 Mini I now don't have that problem. It's a perfect height for working and it doesn't slip on your work surface. Highly recommend