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geekvap 521 tab mini


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Building on the success of their previous ohmmeter, GeekVape has released a smaller and better version, called the GeekVape 521 Tab Mini. This is a 18650 battery-powered ohmmeter and the battery can be charged internally, via an USB port located on the device. This Tab Mini ohmmeter has a range of 0.01 to 9.9 ohms and has both an ohmmeter mode and a Fire mode. Ohmmeter mode allows you to test the resistance of your coils and the Fire mode will give you live feedback, burning your coils at 31-33W.


A large OLED display shows the resistance readout and battery levels.The GeekVape 521 Tab Mini ohmmeter has a gold-plated, spring-loaded 510 connection for increased durability and is compatible with a wide range of different platforms. Safety first vapers! If you’re building your own coils, this Tab Mini ohmmeter is a very smart investment, available here at the right price!


GeekVape 521 Tab Mini Ohmmeter Features:


  • Dimensions: 83 mm x 61 mm x 24mm

  • Three Modes: Off, Fire, and Ohm Reader Mode

  • Capable of Test-firing

  • Large Rebuilding Deck

  • OLED Display Shows Resistance & Battery Level

  • Measuring Range: 0.01 – 9.9 ohm

  • An Array of Built-in Protections: Reverse Battery, Low-voltage, Short Circuit, Breaker, Low Resistance, and High Temperature Protection

  • Output Voltage: 1.8~4.2V

  • Output Wattage 31W~33W

  • USB Charging

  • Spring-Loaded Gold-Plated 510 Connection

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