G Pen Pro

Last update: August 26, 2020

The G Pen Pro by Grenco Science is a sleek, durable, and compact dry herb vaporizer. It has a ceramic oven that can hold about 0.25 grams of ground-up herbs of your choice. The silicone mouthpiece makes the draws much more comfortable and smoother. With three temperature settings to choose from, you have the flexibility to control your vape session.


GPen is a company with a dedicated focus on making vaporizers functional and convenient. Take a quick look at their other products like the GPen Roam and the GPen Connect. They always make great beginner vape, and the GPen Pro is a perfect pen for dry herb enthusiasts. Its attractive design, solid foundation, and quick heat-up time are just a few of its appealing features.

Generous size chamber
The ceramic chamber is accessible by removing the vaporizer’s mouthpiece. You’ll find a nice sized oven that heats up and holds 0.25 grams of your most delicious herb. Included in the box is a pen tool that helps you pack the herb into this chamber appropriately, giving you longer sessions without the annoyance of having to stop and stir your chamber contents.

Formatted with LED lights
On the front of the vape pen, you’ll see four little dots right above the “G” logo. These lights serve many useful purposes. First, all these lights blink when the pen’s charging. Once the lights stop flashing and stay solidly lit, you’ll know it’s fully charged. When you’re ready to vape, turn on the device and hold the button down for 3 seconds. The colors will change to indicate a specific temperature setting.

Solid battery life
Upon arrival, you charge the pen using the USB charger that comes along with your purchase. It only takes 2 to 3 hours to charge fully; all the blinking white LED lights turn solid. Also, this device automatically shuts down within 3 to 4 minutes of inactivity. Not only does this preserve the battery life, but it also times your session.

Three temperature settings
You can adjust the temperature on this G Pen Pro by holding down the start button. When all four LED lights turn ‘blue’ the temperature has reached 375°F. To increase the temperature, hold down the button again and wait for the lights to turn green. The ‘green’ setting is 400°F. And finally, the hottest setting is red, which is very fitting. The temperature on ‘red’ is 428°F.

G Pen Pro Video

This helpful video will provide all the information you need to charge, clean, and enjoy your G Pen Pro.

What’s in the box?

  • 1x G Pen Pro
  • 1x USB Charging Cable
  • 1x User Manual
  • 1x Cleaning Brush
  • 1x Pen (Packing) Tool

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