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G Pen Pro Vaporizer

VENDOR: Grenco Science

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G Pen Pro Vaporizer - Grenco Science - A Quick Intro

The G Pen Pro takes all the features of the original G Pen and improves on each and every one of them to bring you a portable dry herb vape that will never let you down.

Who Should Buy the G Pen Pro?

The G Pen Pro is a Dry Herb portable Vaporizer Pen from Grenco Science. You should buy the Grenco Science G Pen Pro if you are looking for a device that is super portable and can handle dry herbs rather than distillate. 

These days, a lot of vape pens are only designed to be used with distillate which is a viscous liquid extract similar to vape juice. This is convenient for many, if you have access to it, however, the most abundant form is definitely still dry herb. This is where the G Pen Pro becomes your best friend. You can use it anywhere and anytime.

So who should buy this pen? In short, people who do not have easy access to distillate cartridge vape pens and prefer the full-spectrum effect of vaping dry herbs.

Why You’ll Love the G Pen Pro?

g pen pro

This is a high-quality, durable product. It is capable of heating your herb up to 428 degrees Fahrenheit which is colossal considering its compact size. This pen is great value for money and is extremely simple to use with low maintenance. What else would you look for in a pocket vaporizer?

Is the G Pen Pro worth It? 

Considering the price of the G Pen Pro, it is of great value. There are some vaporizers with similar technology that cost more than 5 times more than the G Pen Pro but do they have 5 times more functionality? It has three heat settings, fantastic battery life, and comes with all the tools needed to keep your device well maintained. Finally, the 1-year warranty will ensure you are protected at least for your first year of ownership.

Top G Pen Pro Features 

1. Excellent Build Quality

The G Pen Pro features an all-aluminum body with a soft-touch matte finish which means that it both feels nice in the hand and can withstand the knocks and bumps associated with daily use. The mouthpiece is constructed of plastic and has a soft silicone cover that is soft on the lips.

2. Excellent Heating Chamber

To give you the best possible vaping experience, the G Pen Pro has a fully ceramic oven for your dry products as well as a fully ceramic heating element that keeps your flavors clean and pure. The oven size measures 8.6 mm across and just over 16mm deep. This enables you to fit approximately 0.25g of dried herb in your oven for each session.

3. Superb Temperature Capabilities

To give each individual the best vaping experience, there are three temperature presets to choose from on the G Pen Pro. The lowest setting is 375 degrees F (blue). This will give you great flavor but smaller vape clouds. The middle is 400 degrees F (green) and the highest is 428 degrees F (red). 

You can tailor your flavor and vapor levels based on what kind of vaping experience you desire. The Heat-Up time from cold is 20 seconds so it is great if you are impatient!

4. Battery Life

The G Pen Pro has a lithium-ion battery with a capacity of 1300mAh. It charges via a Micro USB charging lead which means you can pretty much plugin anywhere for a boost these days. Once turned on, the oven will immediately begin to heat up, and then once there it will automatically power off after 4 minutes to conserve battery life. Each G Pen Pro kit comes with a Micro USB charging cable, a G Pen tool, and a cleaning brush.

How To Use the G Pen Pro?

Let us share our advice on the best way to use and maintain your G Pen Pro. We’ve been trialing it for a few weeks now so may be able to shed some Everyone Does It Wisdom.

How To Operate the G Pen Pro

Charging The Device: Insert the Micro USB cable into the bottom of your device and plug that into a USB socket. You should leave it to charge for 2-3 hours or until the device is fully charged. The LED indicator will let you know when it is fully charged. Blinking lights indicate charging and solid lights indicate that the device is fully charged.

Warning: Before we get started, make sure your G Pen Pro is OFF and not hot before you start to load it up so as to avoid burning yourself.

Loading: The first thing you are going to need is some dried herb and a grinder. Finely grind up approximately 0.2g of herb, remove the mouthpiece by pushing up on the back to release it. Load in your ground herb but be sure not to overfill or pack it too tight. Reattach the mouthpiece securely onto the pen.

Using the Device: To start heating, press the power button on the front panel 5 times quickly. To cycle through the temperature settings, hold the power button down. Blue is 375° F, Green is 400° F and Red is 428° F. We recommend starting low and working your way up as you familiarize yourself with the G Pen Pro. The optimal temperature is reached once all LED lights have stopped flashing and are solid. For best results, we recommend taking long, slow draws between 3-5 seconds.

How To Clean/Maintain The G Pen Pro

To start with, fill a small bowl with some warm water, or for best results use isopropyl alcohol. Remove the mouthpiece from the G Pen Pro and disassemble using the G Pen Pro tool. Wipe as much residue as you can off using the G Pen Pro brush. 

Once you have removed the filter chamber, filter, and silicone mouthpiece cover, insert them into your bowl of alcohol and leave them to soak for a few minutes. At this point, the residue should come off easily by using the brush. Once all the residue is removed, give your parts a rinse in cold water, allow them to dry, and then reassemble. 

Pro Tip: We recommend cleaning your device after every few uses. This will ensure your vapor quality and flavor are never compromised. You will get the most longevity out of your product by keeping it clean and well maintained.

What’s included:

  • 1x G Pen Pro
  • 1x Micro USB Charging Cable
  • 1x G Pen Pro Tool
  • 1x Cleaning Brush

Technical Specifications:

For use with:

Dried herbs

Storage capacity:


Temperature levels

Low (Blue) - 375° F / 190° C

Medium (Green) - 400° F / 204° C

High (Red) - 428° F / 220° C

Heat-up time

20 seconds

Heating type


Vaporizer chamber material


Battery capacity

approximately 40 minutes

Charging Time

3 hours

Charger Type

Micro USB

Approximate dimensions (W x H x D)

11.6 x 2.5 x 2.4 cm.

Approximate weight

80 grams


1 Year Manufacturer Warranty

G Pen Pro Vaporizer

G Pen Pro Vaporizer