Geek Vape 521 Tab Digital Multifunction Coil Master
Details: 1. Breaker protection 2. Dry burn your DIY coil 3. High temperature protection 4. Low voltage protection 5. Low resistance protection 6. Reverse battery protection 7. Short circuit protection 8. Test atomizer coil resistance Short description: Geek Vape 521 Tab Digital Multifunction Coil Master is powered by 3.7v 18650 battery and designed to increase the degree of safety and avoid building a dangerous coil for the mod you are using.