FreeStyle Libre 3 Plus sensor: key details
The FreeStyle Libre 3 Plus sensor is a continuous glucose monitoring (CGM) sensor from Abbott. It measures glucose in the fluid just under your skin and sends readings to a compatible device, so you can see your current level and which way it is heading.
For someone already using the Libre 3 system, the Plus sensor offers up to 15 days of wear. Check that the sensor, app or reader you use belong to a compatible system before you order a replacement.
| Manufacturer | Abbott |
|---|---|
| Wear duration | Up to 15 days |
| Glucose readings | Automatically updated every minute |
| Start-up time | 60-minute warm-up after activation |
| Application site | Back of the upper arm |
| Water resistance | Up to 1 metre for a maximum of 30 minutes |
| Age indication | 2 years and older. Children aged 2 to 12 need an adult caregiver aged at least 18 to supervise and help with use and readings. |
FreeStyle Libre 3 Plus compatibility
You can use the sensor with the FreeStyle Libre 3 app on a compatible smartphone, or with a compatible FreeStyle Libre 3 reader. A phone being able to download an app does not by itself confirm that its model and operating system have been tested.
Use Abbott’s current UK compatibility guides and user manuals to check your exact set-up, including any other Libre app you use. If you use an insulin pump, check the approved sensor, pump and app combination with your diabetes team before switching.
Getting started with your sensor
The Libre 3 Plus uses a pre-assembled, one-piece applicator. You do not need to fit a separate sensor pack into it. Follow the instructions supplied with your sensor and the prompts for your chosen compatible device.
- Prepare your skin. Choose a suitable site on the back of your upper arm. Wash, clean with an alcohol wipe and allow the area to dry completely.
- Apply the sensor. Unscrew the applicator cap, place it over the prepared site and press firmly as instructed. Do not replace the cap once it has been removed.
- Start it on your device. Follow the activation instructions, then allow the 60-minute warm-up before relying on sensor readings.
New to the system? Abbott’s UK set-up guide includes the application and activation videos.
Using your glucose readings safely
A sensor reading and a finger-prick blood glucose result measure glucose in different places. If your readings or alarms do not match how you feel or what you expect, use a blood glucose meter to check before making treatment decisions. Follow the instructions for your device and the plan agreed with your diabetes team.
Glucose alarms depend on the correct settings and the sensor staying connected and within range. Check the manual for your app or reader, rather than assuming an alarm will always reach you.
FreeStyle Libre 3 Plus sensor FAQs
How long does a Libre 3 Plus sensor last?
Each sensor can be worn for up to 15 days. Follow the replacement prompts on your device and the supplied instructions; do not continue using a sensor beyond its wear period.
Can I shower or swim while wearing it?
The sensor is water-resistant to a depth of 1 metre for no more than 30 minutes. Keep your phone or reader dry and follow its separate instructions.
Is Libre 3 Plus the same as the original Libre 3 sensor?
They are different sensor versions. Libre 3 Plus has an up-to-15-day wear period and an age indication of 2 years and older; the original Libre 3 sensor has an up-to-14-day wear period and an age indication of 4 years and older. Check the product name carefully when reordering.
Ordering from The Care Pharmacy
Once you have checked compatibility, choose the quantity you need and use the Add to basket button above. The current price and stock status are shown beside the product, so you can check them before ordering.
Standard delivery is free on orders over £40. See our delivery policy for available services and estimated timings. For help choosing the correct product, contact The Care Pharmacy or browse our glucose monitoring products.
