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You can use the FreeStyle Libre 3 System with either the FreeStyle Libre 3 Sensor or the FreeStyle Libre 3 Plus Sensor. The Indications for Use, Contraindications, Interfering Substance information, and Performance Characteristics are different between the two Sensors. Please reference the labeling content that applies to your Sensor. Make sure you have a FreeStyle Libre 3 Plus Sensor if you plan to connect with a compatible automated insulin dosing (AID) system.
FreeStyle Libre 3 Sensor
FreeStyle Libre 3 Plus Sensor
The latest version of the User’s Manual, including performance data, can always be accessed at FreeStyle Libre 3 Support & Resources | FreeStyle Libre US You can also order a free printed copy from Customer Service: 1-855-632-8658, 7 Days a Week from 8AM to 8PM Eastern Time; excluding holidays.
FreeStyle Libre 3 Sensor users:
The FreeStyle Libre 3 Continuous Glucose Monitoring System is a real time continuous glucose monitoring (CGM) device with alarms capability indicated for the management of diabetes in persons age 4 and older. It is intended to replace blood glucose testing for diabetes treatment decisions, unless otherwise indicated.
The System also detects trends and tracks patterns and aids in the detection of episodes of hyperglycemia and hypoglycemia, facilitating both acute and long-term therapy adjustments. Interpretation of the System readings should be based on the glucose trends and several sequential readings over time.
The System is also intended to autonomously communicate with digitally connected devices. The System can be used alone or in conjunction with these digitally connected devices where the user manually controls actions for therapy decisions.
FreeStyle Libre 3 Plus Sensor users:
The FreeStyle Libre 3 Continuous Glucose Monitoring System is a real time continuous glucose monitoring (CGM) device with alarms capability indicated for the management of diabetes in persons age 2 and older. It is intended to replace blood glucose testing for diabetes treatment decisions, unless otherwise indicated.
The System also detects trends and tracks patterns and aids in the detection of episodes of hyperglycemia and hypoglycemia, facilitating both acute and long-term therapy adjustments. Interpretation of the System readings should be based on the glucose trends and several sequential readings over time.
The System is also intended to autonomously communicate with digitally connected devices, including automated insulin dosing (AID) systems. The System can be used alone or in conjunction with these digitally connected devices for the purpose of managing diabetes.
For a list of compatible devices, apps, and software that can be used with your Sensor, please go to: FreeStyle Libre 3 Support & Resources | FreeStyle Libre US Use of the Sensor with devices, apps, and software that are not listed may cause inaccurate glucose readings.
FreeStyle Libre 3 app is only compatible with certain mobile devices and operating systems. Please check FreeStyle Libre 3 Support & Resources | FreeStyle Libre US for more information about device compatibility before upgrading your phone or its operating system.
If available, Abbott authorized Reader firmware updates will be made accessible through www.FreeStyleLibre.com.
MRI/CT/Diathermy: The System must be removed prior to Magnetic Resonance Imaging (MRI), Computed Tomography (CT) scan, or high-frequency electrical heat (diathermy) treatment. The effect of MRI, CT scans, or diathermy on the performance of the System has not been evaluated. The exposure may damage the Sensor and may impact proper function of the device which could cause incorrect readings.
Automated Insulin Dosing: The FreeStyle Libre 3 Sensor must not be used with automated insulin dosing (AID) systems, including closed loop and insulin suspend systems.
The following are important cautions and limitations to keep in mind so you can use the System safely. They are grouped into categories for easy reference.
What to know about Reader Alarms:
What to know about App Alarms:
What to know before using the System:
Who should not use the System:
What should you know about wearing a Sensor:
How to Store the Sensor Kit:
How to Store the Reader:
When not to use the System:
What to know about the System:
What to know before you Apply the Sensor:
When is Sensor Glucose different from Blood Glucose:
What to know about X-Rays:
When to remove the Sensor:
What to know about the Reader:
What to know about charging your Reader:
FreeStyle Libre 3 Sensor users:
Taking ascorbic acid (Vitamin C) supplements while wearing the Sensor may falsely raise Sensor glucose readings. Taking more than 500 mg of ascorbic acid per day may affect the Sensor readings which could cause you to miss a severe low glucose event. Ascorbic acid can be found in supplements including multivitamins. Some supplements, including cold remedies such as Airborne® and Emergen-C®, may contain high doses of 1000 mg of ascorbic acid and should not be taken while using the Sensor. See your health care professional to understand how long ascorbic acid is active in your body.
FreeStyle Libre 3 Plus Sensor users:
Taking more than 1000 mg of Vitamin C per day may falsely raise your Sensor readings, which could cause you to miss a severe low glucose event. Vitamin C can be found in supplements including multivitamins and cold remedies such as Airborne® and Emergen-C®. See your health care professional to understand how long Vitamin C is active in your body
You can use the FreeStyle Libre 2 System with either the FreeStyle Libre 2 Sensor or the FreeStyle Libre 2 Plus Sensor. The Indications for Use, Contraindications, Interfering Substance information, and Performance Characteristics are different between the two Sensors. Please reference the labeling content that applies to your Sensor. Make sure you have a FreeStyle Libre 2 Plus Sensor if you plan to connect with a compatible automated insulin dosing (AID) system.
FreeStyle Libre 2 Sensor
FreeStyle Libre 2 Plus Sensor
The latest version of the User’s Manual, including performance data, can always be accessed at FreeStyle Libre 2 Support & Resources | FreeStyle Libre US You can also order a free printed copy from Customer Service: 1-855-632-8658, 7 Days a Week from 8AM to 8PM Eastern Time; excluding holidays.
FreeStyle Libre 2 Sensor users:
The FreeStyle Libre 2 Flash Glucose Monitoring System is a continuous glucose monitoring (CGM) device with real time alarms capability indicated for the management of diabetes in persons age 4 and older. It is intended to replace blood glucose testing for diabetes treatment decisions, unless otherwise indicated.
The System also detects trends and tracks patterns and aids in the detection of episodes of hyperglycemia and hypoglycemia, facilitating both acute and long-term therapy adjustments. Interpretation of the System readings should be based on the glucose trends and several sequential readings over time.
The System is also intended to autonomously communicate with digitally connected devices. The System can be used alone or in conjunction with these digitally connected devices where the user manually controls actions for therapy decisions.
FreeStyle Libre 2 Plus Sensor users:
The FreeStyle Libre 2 Flash Glucose Monitoring System is a continuous glucose monitoring (CGM) device with real time alarms capability indicated for the management of diabetes in persons age 2 and older. It is intended to replace blood glucose testing for diabetes treatment decisions, unless otherwise indicated.
The System also detects trends and tracks patterns and aids in the detection of episodes of hyperglycemia and hypoglycemia, facilitating both acute and long-term therapy adjustments. Interpretation of the System readings should be based on the glucose trends and several sequential readings over time.
The System is also intended to autonomously communicate with digitally connected devices, including automated insulin dosing (AID) systems. The System can be used alone or in conjunction with these digitally connected devices for the purpose of managing diabetes.
For a list of compatible devices, apps, and software that can be used with your Sensor please go to: FreeStyle Libre 2 Support & Resources | FreeStyle Libre US Use of the Sensor with devices, apps, and software that are not listed may cause inaccurate glucose readings. FreeStyle Libre 2 app is only compatible with certain mobile devices and operating systems. Please check the Support section on www.FreeStyleLibre.com for more information about device compatibility before upgrading your phone or its operating system.
MRI/CT/Diathermy: The System must be removed prior to Magnetic Resonance Imaging (MRI), Computed Tomography (CT) scan, or high-frequency electrical heat (diathermy) treatment. The effect of MRI, CT scans, or diathermy on the performance of the System has not been evaluated. The exposure may damage the Sensor and may impact proper function of the device which could cause incorrect readings.
Automated Insulin Dosing: FreeStyle Libre 2 Sensors must not be used with automated insulin dosing (AID) systems, including closed loop and insulin suspend systems.
The following are important cautions and limitations to keep in mind so you can use the System safely. They are grouped into categories for easy reference.
What to know about Reader Alarms:
What to know about App Alarms:
What to know before using the System:
Who should not use the System:
What should you know about wearing a Sensor:
How to Store the Sensor Kit:
How to Store the Reader:
When not to use the System:
What to know about the System:
What to know before you Apply the Sensor:
When is Sensor Glucose different from Blood Glucose:
What to know about X-Rays:
When to remove the Sensor:
What to know about the Reader:
What to know about charging your Reader:
FreeStyle Libre 2 Sensor users:
Taking ascorbic acid (Vitamin C) supplements while wearing the Sensor may falsely raise Sensor glucose readings. Taking more than 500 mg of ascorbic acid per day may affect the Sensor readings which could cause you to miss a severe low glucose event. Ascorbic acid can be found in supplements including multivitamins. Some supplements, including cold remedies such as Airborne® and Emergen-C®, may contain high doses of 1000 mg of ascorbic acid and should not be taken while using the Sensor. See your health care professional to understand how long ascorbic acid is active in your body.
FreeStyle Libre 2 Plus Sensor users:
Taking more than 1000 mg of Vitamin C per day may falsely raise your Sensor readings, which could cause you to miss a severe low glucose event. Vitamin C can be found in supplements including multivitamins and cold remedies such as Airborne® and Emergen-C®. See your health care professional to understand how long Vitamin C is active in your body.
CAUTION: Federal law restricts this device to sale by or on the order of a physician.
You can use Libre app with the FreeStyle Libre 3 Sensor and the FreeStyle Libre 3 Plus Sensor (simply referred to as Libre 3 Sensor and Libre 3 Plus Sensor). Some of the information in this User's Manual and the performance characteristics vary between the Sensors. Please reference the labeling content that applies to your Sensor. Make sure you have a Libre 3 Plus Sensor if you plan to connect with a compatible automated insulin dosing (AID) system.
Libre 3 Sensor
Libre 3 Plus Sensor
Libre 3 Sensor users:
The FreeStyle Libre 3 Continuous Glucose Monitoring System is a real time continuous glucose monitoring (CGM) device with alarms capability indicated for the management of diabetes in persons age 4 and older. It is intended to replace blood glucose testing for diabetes treatment decisions, unless otherwise indicated.
The System also detects trends and tracks patterns and aids in the detection of episodes of hyperglycemia and hypoglycemia, facilitating both acute and long-term therapy adjustments. Interpretation of the System readings should be based on the glucose trends and several sequential readings over time.
The System is also intended to autonomously communicate with digitally connected devices. The System can be used alone or in conjunction with these digitally connected devices where the user manually controls actions for therapy decisions.
Libre 3 Plus Sensor users:
The FreeStyle Libre 3 Continuous Glucose Monitoring System is a real time continuous glucose monitoring (CGM) device with alarms capability indicated for the management of diabetes in persons age 2 and older. It is intended to replace blood glucose testing for diabetes treatment decisions, unless otherwise indicated.
The System also detects trends and tracks patterns and aids in the detection of episodes of hyperglycemia and hypoglycemia, facilitating both acute and long-term therapy adjustments. Interpretation of the System readings should be based on the glucose trends and several sequential readings over time.
The System is also intended to autonomously communicate with digitally connected devices, including automated insulin dosing (AID) systems. The System can be used alone or in conjunction with these digitally connected devices for the purpose of managing diabetes.
Diathermy: Remove all parts of your System before high-frequency electrical heat (diathermy) treatment. The effect of diathermy on the System hasn’t been tested. The exposure may damage the Sensor, which could impact proper device function and cause inaccurate readings.
Automated Insulin Dosing (AID): The Libre 3 Sensor must not be used with AID systems, including closed loop and insulin suspend systems.
What to know before using the System:
Who should not use the System:
When is Sensor glucose different from blood glucose:
What to know about the App:
Follow the instructions in the App to turn on these settings and permissions. If your phone is not configured correctly, you will see Alarms Unavailable on your screen.
For you to receive alarms:
Go to the Alarms section in the user manual to learn more about the App's alarms.
What to know before you apply the Sensor:
What to know about wearing a Sensor:
How to store the Sensor Kit:
When to remove the Sensor:
When not to use the Sensor:
Go to the Applying Your Sensor section in the user manual to learn how to prepare and apply your Sensor.
MRI safety information:
Parameter |
Condition |
Device Name |
Libre 3 or Libre 3 Plus Sensor |
Static Magnetic Field Strength (B0) |
1.5T and 3T |
MR Scanner Type |
Cylindrical |
B0 Field Orientation |
Horizontal |
Maximum Spatial Field Gradient |
40 T/m (4,000 G/cm) |
Maximum Gradient Slew Rate |
200 T/m/s per axis |
RF Excitation |
Circularly Polarized (CP) |
RF Transmit Coil Type |
Integrated Whole Body Transmit Coil |
Operating Mode |
Normal Operating Mode |
RF Conditions |
Maximum Whole-body SAR: 2 W/kg |
Scan Duration |
1.5T scanners: Up to 1 hour of continuous scanning without cooling period. _________________________________________________________________________________ 3T scanners: Up to 12 minutes of scanning between the pelvis and the sternum with a cooling period of 2 minutes between scans. Up to 1 hour of continuous scanning without cooling period when scanning elsewhere. |
Scan Regions |
All landmark locations are acceptable within the region-specific scan durations described above. |
Image Artifact |
The presence of a Libre 3 or Libre 3 Plus Sensor may produce an image artifact of 5.8 cm. Some manipulation of scan parameters may be needed to compensate for the artifact. |
Device Functionality |
Device readings may be inaccurate during active MRI scanning but device functionality fully returns to normal operation by 1 hour following MRI exposure. |
Libre 3 Sensor
Taking Vitamin C supplements while wearing the Sensor may falsely raise Sensor glucose readings. Taking more than 500 mg of Vitamin C per day may affect the Sensor readings. This could cause you to miss a severe low glucose event. Vitamin C can be found in supplements including multivitamins. Some supplements, including cold remedies such as Airborne® and Emergen-C®, may contain high doses of 1000 mg of Vitamin C. These should not be taken while using the Sensor. See your health care professional to understand how long Vitamin C is active in your body.
Libre 3 Plus Sensor
Taking more than 1000 mg of Vitamin C per day may falsely raise your Sensor readings. This could cause you to miss a severe low glucose event. Vitamin C can be found in supplements including multivitamins and cold remedies such as Airborne® and Emergen-C®. See your health care professional to understand how long Vitamin C is active in your body.
CAUTION: Federal law restricts this device to sale by or on the order of a physician.
You can use Libre app with the FreeStyle Libre 2 Sensor and the FreeStyle Libre 2 Plus Sensor (simply referred to as Libre 2 Sensor and Libre 2 Plus Sensor). Some of the information in the User's Manual and the performance characteristics vary between the Sensors. Please reference the labeling content that applies to your Sensor. Make sure you have a Libre 2 Plus Sensor if you plan to connect with a compatible automated insulin dosing (AID) system.
Libre 2 Sensor
Libre 2 Plus Sensor
Libre 2 Sensor users:
The FreeStyle Libre 2 Flash Glucose Monitoring System is a continuous glucose monitoring (CGM) device with real time alarms capability indicated for the management of diabetes in persons age 4 and older. It is intended to replace blood glucose testing for diabetes treatment decisions, unless otherwise indicated.
The System also detects trends and tracks patterns and aids in the detection of episodes of hyperglycemia and hypoglycemia, facilitating both acute and long-term therapy adjustments. Interpretation of the System readings should be based on the glucose trends and several sequential readings over time.
The System is also intended to autonomously communicate with digitally connected devices. The System can be used alone or in conjunction with these digitally connected devices where the user manually controls actions for therapy decisions.
Libre 2 Plus Sensor users:
The FreeStyle Libre 2 Flash Glucose Monitoring System is a continuous glucose monitoring (CGM) device with real time alarms capability indicated for the management of diabetes in persons age 2 and older. It is intended to replace blood glucose testing for diabetes treatment decisions, unless otherwise indicated.
The System also detects trends and tracks patterns and aids in the detection of episodes of hyperglycemia and hypoglycemia, facilitating both acute and long-term therapy adjustments. Interpretation of the System readings should be based on the glucose trends and several sequential readings over time.
The System is also intended to autonomously communicate with digitally connected devices, including automated insulin dosing (AID) systems. The System can be used alone or in conjunction with these digitally connected devices for the purpose of managing diabetes.
Diathermy: Remove all parts of your System before high-frequency electrical heat (diathermy) treatment. The effect of diathermy on the System hasn’t been tested. The exposure may damage the Sensor, which could impact proper device function and cause inaccurate readings.
Automated Insulin Dosing (AID): The Libre 2 Sensor must not be used with AID systems, including closed loop and insulin suspend systems.
What to know before using the System:
Who should not use the System:
When is Sensor glucose different from blood glucose:
What to know about the App:
Follow the instructions in the App to turn on these settings and permissions. If your phone is not configured correctly, you will see Alarms Unavailable on your screen.
For you to receive alarms:
Go to the Alarms section in the user manual to learn more about the App's alarms.
What to know before you apply the Sensor:
What to know about wearing a Sensor:
How to store the Sensor Kit:
When to remove the Sensor:
When not to use the Sensor:
Go to the Applying Your Sensor section in the user manual to learn how to prepare and apply your Sensor.
MRI safety information:
Parameter |
Condition |
Device Name |
Libre 2 or Libre 2 Plus Sensor |
Static Magnetic Field Strength (B0) |
1.5T and 3T |
MR Scanner Type |
Cylindrical |
B0 Field Orientation |
Horizontal |
Maximum Spatial Field Gradient |
40 T/m (4,000 G/cm) |
Maximum Gradient Slew Rate |
200 T/m/s per axis |
RF Excitation |
Circularly Polarized (CP) |
RF Transmit Coil Type |
Integrated Whole Body Transmit Coil |
Operating Mode |
Normal Operating Mode |
RF Conditions |
Maximum Whole-body SAR: 2 W/kg |
Scan Duration |
1.5T scanners: Up to 1 hour of continuous scanning without cooling period. _________________________________________________________________________________ 3T scanners: Up to 12 minutes of scanning between the pelvis and the sternum with a cooling period of 2 minutes between scans. Up to 1 hour of continuous scanning without cooling period when scanning elsewhere. |
Scan Regions |
All landmark locations are acceptable within the region-specific scan durations described above. |
Image Artifact |
The presence of a Libre 2 or Libre 2 Plus Sensor may produce an image artifact of 6.9 cm. Some manipulation of scan parameters may be needed to compensate for the artifact. |
Device Functionality |
Device readings may be inaccurate during active MRI scanning but device functionality fully returns to normal operation by 1 hour following MRI exposure. |
Libre 2 Sensor
Taking Vitamin C supplements while wearing the Sensor may falsely raise Sensor glucose readings. Taking more than 500 mg of Vitamin C per day may affect the Sensor readings. This could cause you to miss a severe low glucose event. Vitamin C can be found in supplements including multivitamins. Some supplements, including cold remedies such as Airborne® and Emergen-C®, may contain high doses of 1000 mg of Vitamin C. These should not be taken while using the Sensor. See your health care professional to understand how long Vitamin C is active in your body.
Libre 2 Plus Sensor
Taking more than 1000 mg of Vitamin C per day may falsely raise your Sensor readings. This could cause you to miss a severe low glucose event. Vitamin C can be found in supplements including multivitamins and cold remedies such as Airborne® and Emergen-C®. See your health care professional to understand how long Vitamin C is active in your body.
The latest version of the User’s Manual, including performance data, can always be accessed at FreeStyle Libre 14 Day Support & Resources | FreeStyle Libre US You can also order a free printed copy from Customer Service: 1-855-632-8658, 7 Days a Week from 8AM to 8PM Eastern Time; excluding holidays.
The FreeStyle Libre 14 day Flash Glucose Monitoring System is a continuous glucose monitoring (CGM) device indicated for the management of diabetes in persons age 18 and older. It is designed to replace blood glucose testing for diabetes treatment decisions.
The System detects trends and tracks patterns aiding in the detection of episodes of hyperglycemia and hypoglycemia, facilitating both acute and long-term therapy adjustments. Interpretation of the System readings should be based on the glucose trends and several sequential readings over time. The System is intended for single patient use and requires a prescription.
MRI/CT/Diathermy: The FreeStyle Libre 14 day Flash Glucose Monitoring System must be removed prior to Magnetic Resonance Imaging (MRI), Computed Tomography (CT) scan, or high-frequency electrical heat (diathermy) treatment. The effect of MRI, CT scans, or diathermy on the performance of the System has not been evaluated. The exposure may damage the Sensor and may impact proper function of the device which could cause incorrect readings.
Below are important cautions and limitations to keep in mind so you can use the System safely. They are grouped into categories for easy reference.
What to know about Alarms/Alerts:
What to know before using the System:
Who should not use the System:
What should you know about wearing a Sensor:
How to Store the Sensor Kit:
How to Store the Reader:
When not to use the System:
What to know before you Apply the Sensor:
When is Sensor Glucose different from Blood Glucose:
What to know about interfering substances such as Vitamin C and Aspirin:
What to know about X-Rays:
When to remove the Sensor:
What to do if you are dehydrated:
What to know about the Reader:
What to know about charging your Reader:
ADC-05596 v20.0
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