• Do not use the Guardian app without understanding how the mobile device settings work. If the
mobile device settings are not set up correctly, the app may not send SG alerts.
• Make sure Bluetooth™* is on, even if the mobile device is in airplane mode. If Bluetooth™* is off, the
app will not send SG information or alerts.
• Do not use the Guardian app if the mobile device screen or speakers are damaged. If the mobile
device is damaged, the app may not send SG alerts and SG information may not be shown
correctly.
• Do not force close the Guardian app. If the app is closed, the app will not send SG information or
alerts.
• Check the Guardian app occasionally to make sure it is running. The mobile device may close the
Guardian app automatically when another app is in use, such as a game. If the Guardian app is
closed, the app will not send SG alerts.
• Do not let the mobile device shut down due to low battery, or the app will not send SG alerts. Use
of the app may deplete the mobile device battery more quickly. Have a charger available to charge
the battery if needed.
• Always make sure to open the app after the mobile device restarts to ensure the app sends SG
alerts.
• Make sure to set the snooze to a short enough time so that the app sends an alert again if glucose
levels do not improve. When an SG alert is snoozed, the app will not send that alert again during
the length of the set snooze time.
• Taking medications that contain paracetamol or acetaminophen, such as fever reducers or cold
medicine, while wearing the sensor may falsely raise SG readings. The level and duration of sensor
inaccuracy depends on how much medication is working in the body and will be different for each
person. If medication is taken with paracetamol or acetaminophen, use a BG meter reading for
dosing decisions in order to avoid a possible hypoglycemic event. Consult a healthcare
professional when determining insulin dosage.
• Turning off automatic updates on the mobile device may help to avoid unintentionally updating
to an operating system that is not confirmed as compatible with the Guardian app.
• Do not root or jailbreak the mobile device. Rooting the Android™* device or jailbreaking the iOS™*
device means to change the software in a way the manufacturer did not intend. If the mobile
device is changed in this way, the Guardian app will display an error message when launched and
will not continue to operate.
Android™* Users
• Allow Do Not Disturb Permissions and Notifications for the Guardian app. If Do Not Disturb
Permissions or Notifications are turned off, the app will not send any alerts, including Urgent
Low Alert.
11