Sensor and transmitter support and resources

Inserting a sensor with help from someone else

Get step-by-step instructions for inserting a sensor on your arm with the help of a partner.

How to insert the Guardian™ 4 sensor on your arm

Get step-by-step instructions for inserting a sensor on your arm.

Understanding Sensor Updating alert

Get clarity on what to do if you ever get the Sensor Updating alert while using your MiniMed™ 780G system with Guardian™ 4 sensor.

Optimizing transmitter performance

Pay attention to the charging tips that may help your transmitter battery last longer.

Calibrating your sensor

Learn how to calibrate with the Guardian™ Sensor 3.

Reducing Lost Sensor alerts

Find out why you may get a Lost Sensor alert and how to try to prevent it in the future.