NICE now recommends Hybrid Closed Loop (HCL) systems for selected people with type 1 diabetes2

The new NICE technology appraisal recommendation means more people with type 1 diabetes qualify for HCL systems. Choose the FreeStyle Libre 3 sensor which is authorized to work with the mylife Loop1 AID system. Find out more.

Need help with your sensor? Fill in our quick Online Sensor Support form.

A member of our Customer Service team will then get in touch to help.

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How to get started with your FreeStyle Libre system

Select your system:

How to set up the FreeStyle Libre 2 System

Download the FreeStyle LibreLink app

Easily know your sugar levels and where they're headed with a quick glance at your smartphone.

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Sign in or set up your account

Once the FreeStyle LibreLink app is installed on your smartphone, open it and you'll be prompted to sign in or create an account. If you are new to FreeStyle LibreLink app or LibreView, follow the steps to set up your account.

Why create an account?

  • Your glucose readings will be automatically uploaded to LibreViewΔ — no meter or reader cables required

  • Your personal glucose information is stored on a secure, cloud-based system1

  • If you change phones, you can still access all your data on LibreView

  • To share your glucose data with your friends, family and caregivers through the LibreLinkUp app§


If you're using the FreeStyle Libre 2 Reader or would like more information, download the FreeStyle Libre 2 system User Manual.

A woman sitting down facing her laptop with FreeStyle Libre sensor visible on the back of her upper arm

Watch our video guide or follow the instructions below

Prepare the skin and apply your FreeStyle Libre 2 sensor

1. Clean and dry the back of your upper arm where you will apply the sensor

Avoid areas with scars, moles, stretch marks or lumps. Select an area of skin that generally stays flat during your normal daily activities with no bending or folding. Choose a site that is at least 2.5cm (1”) away from an insulin injection site.

An alcohol wipe is a good way of cleaning the skin, but make sure you’re not using a moisturising alcohol wipe as this will prevent the sensor from sticking properly. Make sure you fully dry your skin before applying the sensor.


The sensor kit comes in two parts: the sensor applicator and the sensor pack.

2. Peel the lid completely off the sensor pack and unscrew the cap from the sensor applicator.

Caution: Do not use if the Sensor Pack or the Sensor Applicator seem to be damaged or already opened. Do not use if past expiration date.

3. Attach the sensor applicator to the sensor pack.

Place the sensor application into the open sensor pack. Line up the dark mark on the applicator with the mark on the pack and press down firmly on the sensor applicator until it comes to a stop.

4. Apply the sensor to your pre-cleaned section of skin on the back of your upper arm.

Place the applicator over the application site and push firmly until the sensor is in place.

The Sensor Applicator contains a needle. Do not touch the inside of the Sensor Applicator and do not push down on the Sensor Applicator until it’s placed over the application site.

Make sure the sensor is secure after application.

Activate your FreeStyle Libre 2 sensor

  • Open the FreeStyle LibreLink app on your phone.

  • On iPhone, tap Next on the Apply a new sensor screen.

    Tap SCAN NEW SENSOR.

    A Ready to Scan popup will appear on your screen.

    On Android phone scan to start a new sensor.

  • On iPhone hold the top of your phone near your sensor (this can be over your clothing). Don't move your phone.

    You will hear a tone or feel a vibration.

    On Android phone hold the back of your phone near the sensor (this can be over your clothing). 

    Do not move the smartphone until you hear the first tone and/or feel a vibration. This indicates your smartphone and sensor have established an NFC connection. 

    Continue holding your smartphone near the Sensor until you hear a second tone and/or feel a vibration. This completes the scan.

  • Wait 1 hour for your sensor to adapt to your body before viewing your glucose level readings on your smartphone in real-time.ǁ

FreeStyle libre patient at dinner table checking his glucose readings

Apply and activate the FreeStyle Libre 2 sensor

How to set up the FreeStyle Libre 3 System

Download the FreeStyle Libre 3 app◊◊

With the FreeStyle Libre 3 app, your FreeStyle Libre 3 sensor sends glucose readings to your phone every minute. No need to scan.

A screenshot showing the FreeStyle Libre 3 app on a phone.

Apply and activate the FreeStyle Libre 3 sensor

Watch our video guide or follow the instructions below

Prepare the skin and apply your FreeStyle Libre 3 sensor

1. Clean and dry the back of your upper arm where you will apply the sensor

Avoid areas with scars, moles, stretch marks or lumps. Select an area of skin that generally stays flat during your normal daily activities with no bending or folding. Choose a site that is at least 2.5cm (1”) away from an insulin injection site.

An alcohol wipe is a good way of cleaning the skin, but make sure you’re not using a moisturising alcohol wipe as this will prevent the sensor from sticking properly. Make sure you fully dry your skin before applying the sensor.


The sensor kit comes as one piece applicator.

2. Apply the sensor to your pre-cleaned section of skin on the back of your upper arm.

Place the applicator over the application site and push firmly until the sensor is in place.

The Sensor Applicator contains a needle. Do not touch the inside of the Sensor Applicator and do not push down on the Sensor Applicator until it’s placed over the application site.

Make sure the sensor is secure after application.

Activate your FreeStyle Libre 3 sensor
  • Open the FreeStyle Libre 3 app on your phone.◊◊

    On iPhone tap Next on the Apply a new sensor screen.

    Tap SCAN NEW SENSOR.

    A Ready to Scan popup will appear on your screen.

    On Android phone scan to start a new sensor.

  • On iPhone hold the top of your phone near the sensor (this can be over your clothing). 

    Scan your sensor by touching the sensor with the TOP of your phone. Move your phone around slowly if needed. Proximity, orientation, and other factors can affect NFC performance.

    On Android phone hold the back of your phone near the sensor (this can be over your clothing). Don’t move your phone.

    Scan your Sensor by touching the sensor with the BACK of your phone. Move your phone around slowly if needed. Proximity, orientation, and other factors can affect NFC performance. Keep in mind that the ease of scanning a sensor may vary between phone models.

  • Wait 1 hour for your sensor to adapt to your body before viewing your glucose level readings on your smartphone in real-time.

A FreeStyle Libre patient standing and scanning the sensor  to activate it
References & Disclaimers

Images are for illustrative purposes only. Not real patient, Healthcare Professional or data.

◊ The FreeStyle LibreLink app is only compatible with certain mobile devices and operating systems. Please check the website for more information about device compatibility before using the app. Use of FreeStyle LibreLink may require registration with LibreView.

₼ The LibreView data management software is intended for use by both patients and healthcare professionals to assist people with diabetes and their healthcare professionals in the review, analysis and evaluation of historical glucose device data to support effective diabetes management. The LibreView software is not intended to provide treatment decisions or to be used as a substitute for professional healthcare advice.

Δ The user’s device must have internet connectivity for glucose data to automatically upload to LibreView.

ǁ Glucose readings are automatically displayed in the FreeStyle LibreLink app only when your/your patients' smartphone and sensor are connected and in range. 

§ The LibreLinkUp app is only compatible with certain mobile devices and operating systems. Please check www.librelinkup.com for more information about device compatibility before using the app. Use of LibreLinkUp requires registration with LibreView. The LibreLinkUp mobile app is not intended to be a primary glucose monitor: home users must consult their primary device(s) and consult a healthcare professional before making any medical interpretation and therapy adjustments from the information provided by the app.

◊◊ The FreeStyle Libre 3 app is only compatible with certain mobile devices and operating systems. Please check our website for more information about device compatibility before using the app. Sharing of glucose data requires registration with LibreView.
 
1. LibreView is ISO27001/27018/27701 certified and HITRUST CSF Certified
 
 
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