The G Pen Elite Portable Dry Vaporizer is a compact unit that’s made by the team at Grenco Science. The device can work well for dry herbs. Some highlights of this vaporizer are a deep and sizable filling chamber, complete temperature control and LED (light emitting diode) display. Fans of aromatherapy can enjoy this convection vaporizer’s streamlined and ergonomic setup. Its filling chamber is made entirely of ceramic. It takes just 30 seconds for this vaporizer to heat up.