G Pen Pro – Vitals
Manufacturer Grenco Science
Style Portable
Charging Time 1-3 Hours
Warranty 1 Year
MSRP $99.95

Brief Overview

Continuing in the long line of superior vaporizer engineering, the G Pen Pro from Grenco Science raises the bar once again by utilizing a huge ceramic oven that heats instantly in a sleek, refined, yet perfectly ergonomic form. Despite its small size, the G Pen Pro has a large battery that will keep you vaping session after session. The generous ceramic oven imparts no flavors to your material, you only taste exactly what you load. The three different heat settings allow to you achieve your personal level of vapor perfection, and as your strains change, so do your temperature needs. The G Pen Pro has you covered.


A: A full charge will last a minimum of 12 full activation, or 48 minutes of heating.
A: It will take between 1-3 hours to fully charge or longer if you use it while charging.
A: Yes, It can.
A: The front LED lights will flash white 5 times indicating the device is out of power.


A: Temperature ranges from 375 – 428°F.
A: No you do not, the G Pen Pro will remember your last set temperature.


A: First assure your G Pen Pro is fully charged. To do that, charge via the USB provided. The charging port can be located on the bottom of the device.

  • While the unit is charging you’ll see the LED lights blinking in sequence. When fully charged you’ll see the LED lights turn a solid seafoam green color. The G Pen Pro takes 2-3 hours to fully charge, or longer if you use it while charging which is can be activated by turning on the device by pressing the button five times rapidly once connected to a power source.
  • Remove mouthpiece
  • Load the chamber, the amount is entirely up to the user. Any amount will produce a good amount of vapor, but it’s always good to load at least half way with a fine grind. Loading to the brim is ideal, but should never be over-packed/packed down or too tightly.
  • Completely attach mouthpiece.
  • After loading – Press the power button five times to turn the device on/activate heating.
  • Press and hold button to select desired temperature range. Once temperature is selected this unit will take 20-30 seconds to heat up.
  • Once all LED’S are lit place lips over mouthpiece, then inhale. The number of LED lights shown after vaporization temperature is reached indicates remaining battery life.
  • On a full charge the battery will last a minimum of 12 full activation’s, or 48 minutes of heating. The G Pen Pro will automatically shut off after five minutes of activation.
  • If finished, press the button five times to power off manually.
  • A: A full chamber will last around 12 uses per charge.
    A: No, It can’t.
    A: To achieve the best results, use a G Card to finely grind your preferred dried blends before loading them into the heating chamber.


    A: G Pen Pro Mouthpiece.

    Common Product Issues

    A: The G Pen Pro is designed with an automatic shut-off feature to conserve battery life and prevent unnecessary heating. The G Pen Pro Vaporizer will automatically shut off after a four minute period because of this. If you would like to continue using the G Pen Pro after the automatic shut-off feature has gone into effect, simply press the power button five times to restore power and continue use.

    Cleaning & Maintenance

    A: Once you are finished vaporizing your ground material, remove the mouthpiece and empty the chamber.Allow the unit to cool down before using the included cleaning brush to remove any remnants from the chamber. The mouthpiece can be removed from the unit and soaked in isopropyl alcohol or your preferred cleaning solution, followed by a warm water rinse and air dry.
    A: The heating chamber and mouthpiece will need to be cleaned most often as it can get dirty after extended use.

    Ordering / Returns / Warranty

    A: The G Pen Pro is covered against defects in materials and workmanship on the battery and charger under normal use for a period of one (1) year from the date of purchase.
    Product Dimensions 5.95″ L x 3.5″ W x 3.74″ D
    Product Weight 0.424 lb
    Battery Type Li-Ion Battery
    Battery Capacity 1300 mAh
    Replaceable Battery No
    Charging Options USB
    Recharge Time 1-3 Hours
    Warm-Up Time 20-30 Seconds
    Heating Element Ceramic
    Vapor Path Ceramic
    Vapor Delivery Methid Direct Draw
    Warranty 1 Year

    Included with Purchase:

    • Rechargeable G Pen Pro Vaporizer for Ground Material
    • 1x G Pen USB Charging Cable
    • 1 G Pen Tool
    • 1x Cleaning Brush

    G Pen Pro

    The G Pen Pro has an excellent finish available in Black.

    Getting the Most Out of Your G Pen Pro

    • Make sure your material is finely ground and loaded down tightly to the bottom of the Tank.
    • A larger amount of ground material loaded will generally create a larger volume of vapor than a small amount.
    • Regularly clean the G Pen Pro Mouthpiece, as built-up residue can largely hinder the unit’s performance.
    • Allow the G Pen Pro Vaporizer to cool down before attempting to clean it with the included cleaning brush.
    • Allow the G Pen Pro Vaporizer to finish one full heating cycle before producing maximum vapor, especially on lower temperature settings.

    Need Assistance with your G Pen Pro?

    Try these Solutions to common issues:

    A: A few things could be causing this. Is the 5-click safety lock in place? Try clicking your G Pen Pro button five times and see if anything happens.

    Are you getting any light at all from the button? If not, make sure that it’s charged properly.

    Are the LED lights indicating anything? If you feel the G Pen Pro is fully charged, but are unable to get it to respond to your actions, please contact us.

    A: The G Pen Pro was designed to work with pass-through which allows usage while charging. If this is not occurring, turn the unit off, plug it in, and use as normal.

    Warranty Contact

    G Pen Pro Warranty

    The G Pen Pro is covered against defects in materials and workmanship on the battery and charger under normal use for a period of one (1) year from the date of purchase.

    It’s recommended to register the device on GPen.com/Register using the supplied serial number located on the bottom of the unit.

    VapeWorld handles all Grenco Science warranties for units purchased directly from vapeworld.com or through a Brick and Mortar store that VapeWorld supplies.

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