They must start their FreeStyle Libre 2 sensor with that selected device. ◊ Patients choose which device they want to receive alarms: FreeStyle Libre 2 reader or FreeStyle LibreLink app. Ѱ For children aged 4-12, a caregiver at least 18 years old is responsible for supervising, managing, and assisting them in using the FreeStyle Libre system and interpreting its readings. † Finger pricks are required if your glucose readings and alarms do not match symptoms or expectations. ₸ Sensor is water resistant in up to 1 metre (3 feet) of water for a maximum of 30 minutes. Ω The Reader can capture data from the sensor when it is within 1cm to 4cm of the sensor. ~ Daily Patterns need at least 5 days of glucose data ‡ 60-minute warm-up required when applying the sensor Φ For a complete glycaemic picture, scan once every 8 hours. * Scanning the sensor does not require lancets.