How do I remove a Dexcom G6 CGM sensor and transmitter? [video]

Watch the following video to learn how to remove a sensor and a transmitter:

For the Dexcom G6 CGM, please follow these steps to remove a sensor and transmitter:

1) Your G6 CGM will let you know when to replace the sensor.

2) Grab the edge of the adhesive patch. Peel adhesive patch up and away from your body like a Band-Aid®.

3) Break the purple transmitter holder at notches.

4) Slide the transmitter out of the holder. Keep transmitter to use with the next sensor. Throw out the adhesive patch according to your local guidelines for disposal of blood-contacting components.

Reuse your transmitter

Your transmitter lasts 3 months. Reuse it for multiple sensor sessions. Your G6 tells you when your transmitter will need to be replaced, starting 3 weeks before. If it is your only transmitter, contact Dexcom to order another. When the transmitter has less than 10 days of battery life left, you won’t be able to start a new sensor session.

For more information and an illustrated step-by-step guide to removing a sensor and transmitter, please consult the following Dexcom user guide and refer to the table of contents:

Using your G6 >

Important note about Dexcom support:

For "no restarts" alert or physical problems with your sensor or transmitter, such as bleeding, bruising, skin reaction, adhesive issues, applicator issues, or broken wires, you should contact Dexcom using one of the options at

If you have paired a Dexcom CGM with your Tandem insulin pump, and your question isn't answered in this help section, you should contact Tandem customer technical support for all other issues by calling (877) 801-6901.

Was this article helpful?
7 out of 19 found this helpful
Return to top