A white disc attached to your arm that measures your blood glucose.
A continuous glucose monitor (CGM/sensor) is a device that tracks blood sugar (glucose) levels in real-time, providing frequent updates throughout the day and night.
The sensor is a wearable, flat, white disc device with a fine filament that goes into the skin. You wear a sensor for up to 14-15 days. It measures the glucose levels in your blood, and in the Limbo system, this data is transmitted automatically to your phone, where it can be read in the Limbo app.