Help centre - FreeStyle Libre
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Help centre

FreeStyle Libre Reader

The reader needs to be recharged if it runs out of power. The stored glucose readings on the reader are not lost. The reader should fully charge in approximately 3 hours if the battery is completely discharged.

With normal use, the reader can be used for approximately 7 days before it needs to be recharged. A low battery warning will appear on the reader when it needs to be recharged. There is a battery icon on the reader which will indicate battery life.

Yes, you can get glucose readings through clothing by scanning the reader over the sensor.*

* The reader can capture data from the sensor when it is within 1cm to 4cm of the sensor.

The oldest glucose readings will be lost if the reader is not scanned at least once during an 8 hour period. For example, if you scan the reader over the sensor at 1:00pm and again at 10:00pm, then you will lose glucose data from 1:00-2:00pm.

The reader is smart enough to figure out what data is new with each scan and not double-count any data.

The language on the reader is country-specific and therefore varies from country to country.

In Hong Kong, the language available is English

For most screens, the reader dims after 45 seconds. From a strip result, removing the test strip will turn off the display1.

1 For most screens, the reader dims after 45 seconds and turns off after 60 seconds. From a strip result, removing the test strip will turn off the display.

FreeStyle Libre Sensor

The sensor is 5mm in height and 35mm in diameter. The portion of the sensor that gets inserted under the skin is less than 0.4mm wide and it’s inserted only about 5mm under the skin. Studies indicate that a vast majority of users found the insertion no more painful than a typical finger prick glucose test1.

1 Most people did not feel any discomfort under the skin while wearing the FreeStyle Libre sensor. In a study conducted by Abbott Diabetes Care, 93.4% of patients surveyed (n=30) strongly agree or agree that while wearing the sensor, they did not feel any discomfort under their skin. [29 persons have finished the study; 1 person terminated the study after 3 days due to skin irritations in the area where the sensor touched the skin.]

The sensor automatically measures glucose levels every minute and stores readings at 15 minute intervals for 8 hours. When the sensor is scanned by the reader, the sensor automatically transmits 8 hours of data to the reader.

You can scan as often as you want, but the reading will never change more frequently than every 60 seconds.

To keep the sensor profile small it has a limited storage capacity. To make sure it could hold 8 hours of data (for a typical overnight period), a 15 minute interval was chosen.

The sensor is applied on the back of the upper arm with a disposable device called an applicator. When the sensor is applied, a small (5mm) sterile filament is inserted just under the skin, and held in place with a small adhesive pad. Applying the sensor feels similar to a finger stick2.

2. Rate your level of pain experienced using the Sensor Based Glucose Monitoring system. Most people did not feel any discomfort under the skin while wearing the FreeStyle Libre sensor. In a study conducted by Abbott Diabetes Care, 93.4% of patients surveyed (n=30) strongly agree or agree that while wearing the sensor, they did not feel any discomfort under their skin. [29 persons have finished the study; 1 person terminated the study after 3 days due to skin irritations in the area where the sensor touched the skin.]

The disposable sensor is designed to adhere to the back of the upper arm and provide accurate glucose readings for up to 14 days. After 14 days, remove the sensor by peeling off the adhesive pad.

The sensor can only be worn on the back of the upper arm.

The portion of the sensor that gets inserted under the skin is less than 0,4 millimetre wide (1mm is about the thickness of a few strands of human hair) and it’s inserted only about 5mm under the skin, so most people will never feel the sensor while it is being worn3.

3. Most people did not feel any discomfort under the skin while wearing the FreeStyle Libre sensor. In a study conducted by Abbott Diabetes Care, 93.4 % of patients surveyed (n=30) patients agree that the FreeStyle Libre sensor is comfortable to wear.

You can take as many glucose readings as you want while the sensor is being worn. In order to get a 24 hour glycemic picture you need to scan at least once every 8 hours.

Yes, the accuracy of the sensor remains consistent for up to 14 days.

Yes. The sensor can be worn while bathing, showering, swimming or exercising. The sensor should not be taken below a depth of 1 metre (3 feet) in water, and should not be submerged in water for more than 30 minutes.

Check with airline prior to departure as rules and regulations may change without notice.

Your sensor automatically stops working after 14 days.

Start a new sensor. The reader will identify that it is a new sensor and ask if you want to start it.

To check the system is working simply switch on the reader and scan over the sensor to get a glucose reading. If for any reason, the sensor does not work, an error message will appear on the reader prompting the user to replace the sensor. If you have symptoms that do not match the FreeStyle Libre system reading or suspect your reading may be inaccurate, check the reading by conducting a finger prick test using a blood glucose meter. For convenience, there is a built-in FreeStyle Optium blood glucose meter within the reader which works with FreeStyle Optium blood glucose and blood ketone test strips4. If you are experiencing symptoms that are not consistent with your glucose readings, consult your health care professional.

4. For additional details please read the User Guide.

Move to a location where temperature is appropriate and scan again in a few minutes.

LibreView

Connect the FreeStyle Libre reader to your PC and it will prompt you to a one-time download of a device driver file. Ensure that you are using the most updated Internet browser when initiating the download.

Call our Customer Care Team at +852 5808 4196 or email at ADC-CS.HK@abbott.com to get connected to a dedicated LibreView support. Alternatively, more information can be found here:
LibreView for Patients
LibreView for Health Care Professionals