FreeStyle Libre 3 Continuous Glucose Monitor

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The FreeStyle Libre 3 system offers the latest in glucose monitoring technology to revolutionize your diabetes management. With the smallest sensor available on the market and direct streaming to your smartphone, you can now easily monitor your glucose levels from the convenience of your phone. Simply glance at your device to stay informed and gain full control over your health. Designed with you in mind, this innovative device is lightweight, discreet, and hassle-free.

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Frequently Asked Questions

How long does the Freestyle Libre sensor last?

Each sensor lasts up to 14 days. After this time, you'll need to replace it with a new one. 

Will the user feel the FreeStyle Libre 14 day sensor while wearing it?

In a study conducted by Abbott Diabetes Care, 93.4%¹ of patients surveyed (n=30) did not feel discomfort under the skin while wearing the sensor.

How is the Sensor applied to the body?

The Sensor is applied to the back of the upper arm with a simple, disposable device called an applicator. When the Sensor is applied, a small (5mm) filament is inserted just under the skin, and held in place with a small adhesive pad. Most patients don't feel pain when applying the FreeStyle Libre Sensor.^† 

When applying the Sensor to my arm, do I need to stretch or pinch the skin?

No. Apply Sensors only on the back of your upper arm. Avoid areas with scars, moles, stretch marks, or lumps. Select an area of skin that generally stays flat during normal daily activities (no bending or folding). Choose a site that is at least 2.5 cm (1 inch) away from an insulin injection site. To prevent discomfort or skin irritation, you should select a different site other than the one most recently used. For more information, please refer to the FreeStyle Libre user’s manual.

What if I have a hairy arm and have trouble applying the Sensor?

The site selected on the back of the upper arm should be clean-shaven.

Can the Sensor be applied to tattooed skin?

Yes, there is no interaction expected between tattoo ink and the Sensor. It is advised to avoid areas with scars, moles, stretch marks or lumps when applying the FreeStyle Libre Sensor.

Can the Sensor be used at altitudes > 10,000 feet (3,048 meters)?

Sensor performance has been tested to 10,000 feet (3,048 meters) only and is not indicated for use in altitudes > 10,000 feet (3,048 meters). It is not indicated for use above 10,000 feet (3,048 meters).

What can I do during sensor application and wear to help keep my FreeStyle Libre sensor in place?

There are a number of steps and recommendations that can help with sensor adhesion. You can learn more by viewing our Adhesion Guide.

What happens if the FreeStyle Libre Sensor is worn beyond 14 days?

The Sensor automatically stops collecting glucose data and should be removed 14 days after being started.

Will the user feel the Sensor while wearing it?

The portion of the Sensor that gets inserted under the skin is less than 0.4 millimeter wide (1 mm is about the thickness of a few strands of human hair) and it’s inserted only about 5 mm under the skin, so most people will not feel the Sensor while it is being worn.^†

Can users bathe, shower, swim or exercise while wearing a Sensor?

Yes. The Sensor can be worn while bathing, showering, swimming or exercising. The Sensor should not be taken below 1 metre of water (3 feet), and should not be submerged in water for more than 30 minutes. The adhesive is designed to keep the Sensor securely and comfortably in place for up to 14 days.

Is there any problem with the Sensor if you sweat a lot?

Intense exercise may cause your Sensor to loosen due to sweat or movement of the Sensor. If your Sensor comes loose, you may get no readings or unreliable readings, which may not match how you feel. If this should happen apply and start a new Sensor.

How do you remove the Sensor?

Pull up the edge of the adhesive that keeps your Sensor attached to your skin. Slowly peel away from your skin in one motion. Note: Any remaining adhesive residue on the skin can be removed with warm soapy water, baby oil, or isopropyl alcohol.

What if the user needs to remove the Sensor before 14 days (or if it falls off)?

A Sensor that has been removed or that has fallen off cannot be reused. Users should replace the Sensor and start a new Sensor. The reader will identify that it is a new Sensor and ask users if they want to start it.

Can users get a glucose reading through their clothing?

Yes, users can get glucose readings even through clothing by scanning the reader over the Sensor. The reader can capture data from the Sensor when it is within 1 cm to 4 cm of the Sensor.

How many glucose readings can be taken while the Sensor is being worn?

Users can take as many glucose readings as they want while the Sensor is being worn. In order to get a 24 hour glycaemic picture users need to scan at least once every 8 hours. The value is updated every minute.

How frequently does the Sensor capture and store glucose readings?

The FreeStyle Libre Sensor automatically reports the glucose concentration in the interstitial fluid every minute. It also automatically records the glucose concentration every 15 minutes, storing that data in a rolling 8-hour log. When the Sensor is scanned by the reader, the Sensor automatically transmits data to the reader via radio frequency identification (RFID) communication, conforming to the ISO 15693 RFID standard.

When I scan my Sensor, the FreeStyle Libre reader says “Sensor Ended” but I have not worn my Sensor for 14 days yet?

If for any reason the Sensor stops working, please call Customer Service at 855-632-8658. Operational Hours: Mon-Fri from 8:30am - 5:30pm (business days only; no operations on holidays)

1 Data on File. Abbott Diabetes Care †Data on file. In a study conducted by Abbott Diabetes Care, 93.4% of patients surveyed (n=30) did not feel discomfort under the skin while wearing the Sensor.