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Coil Master 521 mini V2
  • Coil Master 521 mini V2
  • Coil Master 521 mini V2
  • Coil Master 521 mini V2 Back view
  • Coil Master 521 mini V2 Side view
  • Coil Master 521 mini V2 Battery view

Coil Master 521 Mini V2

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Coil Master 521 Mini V2

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Coil Master 521 mini V2

  • Brand: Coil Master
  • Unit: set
  • Net Weight: 80(g)

The combined shipping cost will be calculated automatically by the system after you choose the shipping destination in the checkout step.


Product introduction

The Coil Master 521 Mini V2 is the compact evolution of the original 521 Tab, combining Coil Master's world-class precision ohm metering technology that utilizes a heavy-duty 510 connection and a bright easily visible screen. Presenting a multi-functional device acts as an ohm meter reader, voltage drop checker, rebuild deck, and test fire station. Driven by a single 18650 battery, Coil Master 521 mini V2 is a handy compact device for all vapers. Precision ratings are extremely high, offering readings down to 0.05 ohms from 9.9 ohms, offering a level of feedback and accuracy that places the 521 Mini V2 among the highest level in readouts. The 521 mini V2 is able to measure the resistance down to 0.05 ohm, and dry fire their coils down to 0.1ohm as well. A three-way selector switch allows users to switch from off, to meter position, to a firing position capable of firing atomizers down to 0.1 ohms, giving users live feedback on resistance levels without having to screw and screw the atomizer between testing. For safety reasons, reverse battery protection and short circuit protection are also built-in.


Dimension: 80mm * 80mm * 28mm

Weight: 80g

Housing material: ABS

Battery: Single 18650 battery driven (Battery is not included)

Resistance Measuring Range: 0.05-9.9ohm(Error±0.05ohm)

Resistance rate: 0.1ohm

Connection: 510 threaded with a spring-loaded pin

Coil Master 521 mini V2 comes with

1x User Manual

1x 521 Mini V2



• Ohm meter

• Coil rebuilding deck

• Coil burning

• Reverse battery protection

• Short circuit protection

• Battery output voltage testing

• PCB Heat protection


3 Months for Battery/ Mod. Atomizer & Accessories are DOA (Dead On Arrival), please contact us within 72 hours of delivery.



Simple paper box. Customary Packing from the factory, the packing is subject to change without notice.

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  • Dear customers , here is the place to discuss the questions about the product. if you have any question about your order, please contact our custom service ([email protected]). Thank you!
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