CGM and Sensors
Product Support

A glucose sensor is a tiny electrode that measures your glucose levels. It sits under the skin in your interstitial fluid. Glucose sensors are easily inserted using an automatic insertion device: a needle is used to insert the glucose sensor. The needle is then removed leaving just the tiny flexible electrode under the skin. The glucose sensor is connected to a transmitter, either all-in-one with the sensor or a separate device, so that readings can be transmitted to your insulin pump.

When using the MiniMed^TM 780G with the Simplera Sync^TM sensor or Guardian^TM 4 sensor, there are no fingersticks required with SmartGuard^TM technology**. There are times when it is appropriate to enter a fingerstick BG into the MiniMed^TM 780G system, or when the system may sometimes request one. You should use a reading from a BG meter instead of a sensor glucose reading in certain cases. Please review the videos above to learn more. When using the Guardian^TM Sensor (3), calibrations in the form of a BG by fingerstick are required at least every 12 hours. ​When using either sensor not in SmartGuard^TM tech, a BG reading should be used before making treatment decisions.

**A blood glucose (BG) reading is needed to enter SmartGuard^TM. If symptoms don’t match alerts & readings, use a BG meter. Refer to user guide.

Although indicated in multiple areas depending on age, it has been found that wearing the Simplera Sync^TM sensor and Guardian^TM 4 sensor on the back of the upper arm may provide the best sensor life and experience. Therefore, it is the recommendation that patients first try insertion on the back of the arm, if they are able to do so.

Simplera Sync^TM sensor

Guardian^TM 4 sensor

Guardian^TM Sensor (3)

The Simplera Sync^TM sensor, Guardian^TM 4 sensor and Guardian^TM Sensor (3) can be worn for up to 7 days. Remember, the transmitter is re-usable and should be re-charged after each sensor wear. No transmitter is required when using the Simplera Sync^TM sensor.

Both the Guardian^TM 4 transmitter and Guardian^TM Link (3) transmitters come with a 12-month warranty. No transmitter is required when using the Simplera Sync^TM sensor.

Both the Guardian^TM 4 transmitter and Guardian^TM Link (3) Transmitters have a self-­contained battery, which can be recharged using the charger supplied, but cannot be changed. As it has a self­contained battery, the transmitter should be disposed of, or recycled, in accordance with local governing ordinances and recycling guidelines. No transmitter is required when using the Simplera Sync^TM sensor.

If your Guardian^TM 4 Transmitter is out of warranty or will expire soon, you can request a renewal through your MiniMed^TM eShop account. Look for the “Guardian 4 Transmitter Renewal” offer under your Exclusive Deals, add it to your cart, and complete your order. No transmitter is required when using the Simplera Sync^TM sensor.

1. Attach the transmitter to the charger.
2. On your pump, from the Home screen, open the Menu and go to the devices settings.
3. Place the transmitter, still attached to the charger, next to the pump.
4. Select Pair New Device. The Searching screen appears.
5. Remove the transmitter from the charger. The transmitter light flashes 10 times, then turns off. The Select Device screen appears with a list of available devices.
6. Select the CGM device that matches the serial number on the back of the transmitter.
7. Check that the serial number on the pump screen matches the serial number on the transmitter. Select Confirm. Use Back if the number is incorrect.

Success message: If the connection completes, the pump shows Pairing successful!

No transmitter is required when using the Simplera Sync^TM sensor.

Many insurance plans cover CGM, resulting in little or sometimes even no out-of-pocket cost. Insurance coverage for CGM may vary depending on the sensor model. Check out our CGM Coverage webpage for more details and how we can help you investigate your coverage.

Request a replacement through the MiniMed WeCare Mobile App or our Sensor Replacement Form. Replacements will be quickest through the WeCare App.

Alternatively you can call our Technical Support team 24/7 at 1.800.284.4416, option 1 for troubleshooting and replacements of lost sensors.