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How do I pair my G5 Mobile Transmitter with my smart device?

To pair your transmitter with your smart device*, you will need to enter your transmitter SN number. The transmitter SN is a series of numbers and/or letters that can be found in the following locations:

  • On the transmitter box label – the transmitter ID number is the same as the SN number on the box
  • On the bottom of the transmitter - the transmitter ID number is the same as the SN number on the bottom of the transmitter


The app will guide you to enter the SN number by taking a photograph of the barcode on the bottom of your transmitter box, or by typing in the SN.

After entering the SN successfully, you will be prompted to insert the sensor and attach the transmitter. From there, wait up to 30 minutes for your smart device and transmitter to connect.

You can only set your transmitter ID when you are not in a sensor session. If you are in session when you attempt to pair a new transmitter ID, the app will ask you if you wish to stop the current session. Selecting STOP SENSOR will end a sensor session you may have with a current working transmitter.

* for a list of compatible devices, click here

LBL013382 Rev002
US - English translation unavailable for Interested in Dexcom CGM.