The Cap by DynaVap is a big part of what makes DynaVap so special. The cap is made out of medical grade stainless steel and is engineered to click 1-2 times once it reaches the correct temperature.
The cap is also designed to be a very handy tool. With its main job being scooping out spent herb. But is also handy for other tasks as well. Pretty sure Macgyver played a part in the design of this handy little cap.