Yocan UNI PRO is worth a try

Yocan

Yocan Uni Pro by Yocan has other advantages to the original YOCAN UNI, namely, adjustable height, adjustable size, preheating function, and comfortable appearance factors.

The UNI Pro has a continuously variable voltage from 2.0V to 4.2V, and it is very easy to adjust the voltage using the arrow buttons, so you can try different voltages until you find the perfect voltage for each OIL cartridge. The OLED display is a huge reward. There is no need to remember the meaning of or LED indicators, they are displayed directly on the screen and even show the battery allowance.

Specifications of YOCAN UNI PRO:

Integrated 650mAh Rechargeable Battery
Voltage Output Range: 2.0-4.2V
10s Preheating Function
Zinc-Alloy Chassis Construction
Intuitive Firing Button
Two Adjustment Buttons
OLED Display Screen
Patented Adjustable Atomizer Height/Diameter Settings
Magnetic 510 Threaded Adapter
LED Battery Life Indicator Light
Juice Viewing Window
510 Threaded Connection
MicroUSB Port

Get more on Yocan Official Website: www.yocan.com