GeekVape 521 Tab Coil Master is a new device which is designed to increase the degree of safety and avoid building a dangerous coil for the mod you are using.
- Resistance Measuring Range: 0.01 – 9.9Ω
- Lowest resistance rate: 0.1Ω
- Connection : 510 elastic poles
- Battery: Lithium 18650, 3.7V