One of the most advanced personal vaporizers on the market is the Sigelei V5 Zmax.
How to operate the Sigelei Zmax V5
Sigelei V5 Menu
The menu has 9 different functions:
1. Clean the 510 threads after using to prevent build up and/or corrosion.
2. Do not reverse the battery in the tube.
3. Turn off ZMAX when not using.
4. Do not use protected batteries.
5. Had better not put Zmax in your pocket. A hanger or holster is recommended.