Switching from the FreeStyle Libre 2 sensor to Libre 2 Plus
Abbott discontinued the original Libre 2 sensor in the UK in August 2025. The Plus is its replacement for the Libre 2 system. Wear time increases from up to 14 days to up to 15 days, and you can keep using your Libre 2 reader. If the original sensor is on your repeat prescription, ask your diabetes team or GP practice to update the product name.
Should I start my sensor with my phone or my reader?
If you use your phone: start the new sensor with the FreeStyle LibreLink app for automatic readings every minute while your phone and sensor are connected and in range. Check your phone model and operating system in Abbott’s UK mobile compatibility guide before opening the pack.
If you use a Libre 2 reader: start the sensor with the reader and scan it when you want a reading. To use both the reader and LibreLink with that sensor, start it with the reader first, then scan it with the app. With this setup you need to scan for readings on either device. Optional glucose alarms go to the reader.
Questions about buying and wearing the sensor
What do I get when I order one sensor?
One pack supplies one disposable sensor and its applicator. The reader is sold separately. If you already have a compatible phone or Libre 2 reader, you can order the sensor on its own. For a breakdown of single-sensor and multipack costs, including VAT and delivery considerations, see our UK Libre 2 Plus price comparison.
Where do I wear it, and when do readings start?
Apply the sensor to the back of your upper arm using the instructions in the pack. Once you start it with your phone or reader, allow 60 minutes for the first reading. It measures glucose in the fluid just beneath your skin. Keep a blood glucose meter and strips available for a finger-prick check if your symptoms and sensor readings disagree.
Can I shower or swim with it on?
Yes. You can shower while wearing the sensor. For bathing or swimming, Abbott specifies a maximum depth of one metre and a maximum of 30 minutes under water.
What if my sensor falls off or ends early?
Use your blood glucose meter while sensor readings are unavailable. Keep the box or note the sensor serial number and contact Abbott’s UK sensor support team about the fault. If you feel unwell, follow your diabetes care plan.
