The Freestyle Libre 2 Plus sensor is a wearable device that gives you real-time glucose readings for up to 15 days, without finger pricks. It’s easy to use, comfortable, and designed to help you manage diabetes more confidently.
Product description: Freestyle Libre 2 Plus sensor
The Freestyle Libre 2 Plus sensor is a next-generation glucose monitoring system designed to make life easier for people with diabetes. It’s worn on the back of the upper arm and provides real-time readings without the need for routine finger pricks. This means you can check your blood sugar at any time, day or night, with just a quick scan of your smartphone or compatible reader.
Key features of the Freestyle Libre 2 Plus sensor:
Continuous glucose monitoring for up to 15 days
Real-time readings sent automatically to your smartphone
Customisable alarms for high and low glucose levels
Suitable for adults and children (over 2 years old, with supervision for children under 12)
Water-resistant for swimming, showering, and exercise
The sensor is small, discreet, and comfortable to wear. It can help you see how food, activity, and medication affect your glucose levels—giving you and your healthcare team better information to make treatment decisions.
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Discover how the Freestyle Libre 2 Plus sensor can transform diabetes management, from real-time glucose tracking and painless application to practical tips for daily life. This deep dive covers everything you need to know—whether you’re new to continuous glucose monitoring or looking to upgrade.
Five key takeaways
The Freestyle Libre 2 Plus sensor offers continuous, real-time glucose monitoring for up to 15 days—no finger pricks needed.
It’s suitable for adults and children over 2 years old, providing instant readings to your smartphone.
Customisable alarms help you avoid highs and lows, and the device is water-resistant for everyday life.
Applying and using the sensor is simple, discreet, and comfortable.
It’s designed to help you and your healthcare team make smarter, safer choices about diabetes care.
Overview: Freestyle Libre 2 Plus sensor
The Freestyle Libre 2 Plus sensor has changed the game for people with diabetes. Instead of multiple daily finger pricks, you get continuous, pain-free glucose data with a quick scan. The sensor measures glucose levels in the fluid just under your skin, sending readings every minute to your phone or reader.
This technology helps you spot patterns and trends in your glucose, making it easier to avoid dangerous highs and lows. Customisable alarms keep you in the know, so you can take action before problems arise.
Because it’s water-resistant and discreet, you can wear it all day—while sleeping, exercising, or even swimming. It’s designed to fit into your life, not interrupt it.
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Active ingredient: Freestyle Libre 2 Plus sensor
As a device, the Freestyle Libre 2 Plus sensor doesn’t contain any active ingredients. Instead, it uses a small, flexible filament to measure glucose in the interstitial fluid under your skin, sending results wirelessly to your smartphone or reader.
What is the Freestyle Libre 2 Plus sensor for?
The Freestyle Libre 2 Plus sensor is for continuous glucose monitoring in people with diabetes. It’s suitable for adults and children over 2 years old, helping them and their healthcare teams maintain better blood sugar control and reduce the risk of complications.
By showing how food, activity, and medication affect your glucose, the sensor helps you make informed, safer decisions every day.
How does the Freestyle Libre 2 Plus sensor work?
The Freestyle Libre 2 Plus sensor measures glucose in the fluid just beneath your skin using a tiny, flexible filament. Once applied to your upper arm, it begins working immediately.
The sensor checks your glucose every minute and sends the data to your phone or reader, giving you a complete picture of your trends. This helps you avoid unexpected highs and lows and make smarter choices about meals, exercise, and medication.
It’s water-resistant, so you can wear it in the shower, pool, or gym. Alarms alert you instantly if your glucose is too high or too low, giving you peace of mind.
How to use Freestyle Libre 2 Plus sensor
Prepare the back of your upper arm—clean and dry, avoiding moles or scars.
Use the applicator to apply the sensor. It will click into place.
Open the FreeStyle LibreLink app and scan the sensor to activate it. You’ll see your glucose readings instantly.
Set alarms in the app for high or low glucose. After 15 days, peel off the old sensor and apply a new one. Always follow your healthcare provider’s instructions for best results.
Warnings and precautions: Freestyle Libre 2 Plus sensor
Remove the sensor before MRI, CT, or diathermy scans—they can cause inaccurate readings or damage.
The sensor may not be accurate if you’re critically ill, on dialysis, or have certain medical implants (like pacemakers).
High doses of vitamin C or salicylic acid can affect readings.
If you have complex medical needs, consult your healthcare professional before starting the Freestyle Libre 2 Plus sensor.
Side effects: Freestyle Libre 2 Plus sensor
Most people don’t experience side effects, but some notice mild irritation at the application site, which usually goes away after removal.
Rarely, users may have redness, itching, or an allergic reaction. If you notice persistent discomfort or allergy signs, stop using the sensor and contact your healthcare provider.
Always check the packaging for damage before use and follow all instructions for safe application and removal.
Drug interactions: Freestyle Libre 2 Plus sensor
The Freestyle Libre 2 Plus sensor is a device, so it doesn’t interact with medicines directly. However, high doses of vitamin C or salicylic acid can affect accuracy.
If you use other medical devices (like pacemakers or insulin pumps), check compatibility with your healthcare provider before starting.
Always keep your healthcare team updated about all medicines and supplements you use.
Frequently Asked Questions: Freestyle Libre 2 Plus sensor
How does the Freestyle Libre 2 Plus sensor work?
The sensor measures glucose in the fluid under your skin and sends readings to your smartphone every minute.
Who can use the Freestyle Libre 2 Plus sensor?
It’s designed for people with diabetes, including children over 2 years old (with supervision for ages 2–12).
How is the Freestyle Libre 2 Plus sensor applied?
It’s applied to the back of your upper arm with a simple applicator. Most people find it more comfortable than finger pricks.
How often should the Freestyle Libre 2 Plus sensor be replaced?
Replace every 15 days for accurate results.
Is the Freestyle Libre 2 Plus sensor accurate?
Yes, as long as you use it as recommended. It can help lower HbA1c and improve diabetes control.
Does the Freestyle Libre 2 Plus sensor require finger pricks?
No, but your doctor may still check with finger pricks during reviews.
Can children use the Freestyle Libre 2 Plus sensor?
Yes, for children over 2 years old, with support from adults for the youngest users.
Is the Freestyle Libre 2 Plus sensor compatible with smartphones?
Yes, with the FreeStyle LibreLink app on compatible devices.
How does the Freestyle Libre 2 Plus sensor alert users about glucose levels?
It sends real-time alarms to your device if your glucose is too high or too low. You can adjust or turn off alarms in the app.
Can the Freestyle Libre 2 Plus sensor be worn during exercise?
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