Skip to main content

Switching From Libre Sensors to Dexcom Sensors

Updated over 10 months ago

If you were previously setup with Theia with Libre sensors and have now switched to Dexcom sensors, you will need to follow the steps below:

1. Download the App:

2. Create an Account or Log In:

  • Open the app and follow the prompts to create a new account or log in if you already have created a login.

3. Link Dexcom app & Theia

  • Head over to the CGM Connect page in Theia and enter your Dexcom email and password.

4. Prepare for Application (Once your sensor is received)

  • Choose the right location: The Dexcom G7 sensor is applied to the back of your upper arm.

  • Clean the area: Use an alcohol wipe to clean and disinfect the application area. Allow it to dry completely.

5. Apply The Sensor

  • Open the Sensor Applicator.

  • Remove the sensor applicator from its packaging.

  • Peel off the adhesive backing from the applicator.

  • Place the applicator flat against your skin at the chosen site.

  • Press the button on the applicator to insert the sensor.

  • You may hear a click as the sensor is applied.

  • Gently lift the applicator away from your skin, leaving the sensor in place.

6. Activate the Sensor

  • Activate the sensor: Open the Dexcom app and follow the instructions to scan your new sensor. You’ll need to hold your smartphone close to the sensor to start it.

  • Wait for the warm-up period: The sensor will take about 60 minutes to calibrate before it begins transmitting glucose data.​

7. Monitor Your Glucose Levels

  • Log Activities:Log your activities in Theia to correlate inputs with your body's reactions.

Did this answer your question?