Multi-functional device designed for both DIY starters and advanced users,
Coilmaster 521 Mini tab insure you not building a dangerous coils for the mod you are using.
– Resistance Measuring Range: 0.01 – 9.99 ohm
– Resistance rate: 0.1 ohm
– Connection : 510 threaded with spring loaded pin
– Battery: single 18650 battery driven (Battery is not included in the product)