FAQs
No. GlucoSensor Q is currently not reimbursed by health insurance.
GlucoSensor Q is specifically aimed at the large group of people who do not qualify for reimbursement of continuous glucose monitoring (CGM) through their health insurer and therefore pay for their sensors themselves.
At present, GlucoSensor Q is available on a self-pay basis. Reimbursement options may be introduced in the near future.
The GlucoSensor Q sensor has an IP27 water-resistance rating and is designed for normal daily activities, including showering and swimming.
The sensor can withstand temporary immersion in water up to 1 metre deep for a maximum of 30 minutes. For additional security, especially during swimming, exercise or other activities that may affect adhesion, we recommend using the included adhesive overpatch to help keep the sensor securely in place.
Prolonged exposure to water, and particularly chlorinated water in swimming pools or hot tubs, may affect the sensor’s adhesion. After swimming or showering, gently dry the sensor and the surrounding area and check that it remains securely attached.
The GlucoSensor™ Q Starter Set costs €89.95 and includes two GlucoSensor Q continuous glucose monitoring (CGM) sensors, giving you up to 4 weeks of valuable glucose insights.
Each GlucoSensor Q sensor can be worn for up to 14 days and continuously measures your glucose throughout the day. The sensor and transmitter are fully integrated into one compact device, so there is no separate transmitter to attach, charge or reuse.
Adhesive overpatches are included free of charge to help keep the sensors securely in place. The Starter Set is our recommended option for anyone who wants to start using GlucoSensor Q and gain a clearer understanding of how food, exercise and daily habits affect their glucose and metabolic health.
After the GlucoSensor Q Starter Set, the most cost-effective options are the 3-Pack or the GlucoSensor Q subscription, depending on how you prefer to use continuous glucose monitoring.
The 3-Pack offers a lower price per sensor than purchasing individual sensors, without a subscription or ongoing commitment. It is a flexible option if you want to continue monitoring your glucose whenever it suits you.
For the lowest price per sensor and maximum convenience, the GlucoSensor Q subscription is the best-value option. New sensors are delivered automatically, so you do not need to reorder each time. You can easily manage, pause or cancel your subscription yourself at any time through your account on the GlucoSensor website.
Whichever option you choose, every GlucoSensor Q is an all-in-one CGM sensor with the sensor and transmitter fully integrated, so there is no separate transmitter to purchase, charge or replace.
Yes. GlucoSensor Q is a CE-marked continuous glucose monitoring (CGM) system and is placed on the European market in accordance with the applicable EU requirements for medical devices.
The CE marking confirms that the GlucoSensor Q system has undergone the required conformity assessment for its intended use and meets the applicable requirements for safety and performance.
Yes. You can travel with GlucoSensor Q and continue monitoring your glucose while you are away.
When travelling by air, inform airport security staff that you are wearing a continuous glucose monitoring (CGM) sensor if required and follow the airport’s screening procedures and the instructions provided in the GlucoSensor Q Instructions for Use.
During the flight, you can put your smartphone in airplane mode and keep Bluetooth enabled so the GlucoSensor Q app can remain connected to your sensor. Always follow the instructions of the airline and cabin crew regarding the use of electronic devices.
We recommend carrying sufficient GlucoSensor Q sensors and adhesive overpatches for your trip, preferably in your hand luggage. It can also be useful to carry documentation stating that you are travelling with a medical device, particularly when travelling internationally.
Before travelling, make sure your smartphone is compatible with the GlucoSensor Q app and that you have everything you need to continue monitoring your glucose throughout your trip.
No. GlucoSensor Q is intended for adults aged 18 years and older and is not intended for use by children or adolescents under 18.
Each GlucoSensor Q continuous glucose monitoring (CGM) sensor can be worn for up to 14 days, providing continuous glucose readings throughout the wear period.
If a GlucoSensor Q reading seems unusually high or low, does not match how you feel, or differs significantly from what you expect, check your glucose with a finger-prick blood glucose meter before making decisions based on the CGM reading.
CGM systems measure glucose in interstitial fluid rather than directly in the blood, so temporary differences between CGM readings and blood glucose values can occur, particularly when glucose levels are changing rapidly.
If unexpected readings continue, check that the sensor is correctly positioned and securely attached, and consult the GlucoSensor Q Instructions for Use and troubleshooting information on our website. If the issue persists, contact GlucoSensor customer support for further assistance.
If your symptoms do not match your GlucoSensor Q reading, always base immediate treatment decisions on a blood glucose meter and seek medical advice when appropriate.
Yes. The GlucoSensor Q app includes a sharing function that allows you to share glucose information with family members, friends or caregivers.
Once sharing is enabled, selected followers can view your glucose data through the app. This can provide additional insight and reassurance, for example when someone wants to stay informed about your glucose levels from a distance.
Glucose data is transmitted through the app and may not always be displayed instantly. The timing of updates can depend on factors such as the smartphone connection, internet availability and app synchronisation.
The sharing function is intended as an additional way to stay connected and informed and should not be relied upon as the sole method for urgent glucose monitoring or immediate assistance.
You can manage your glucose alerts and notification preferences directly in the GlucoSensor Q app.
Go to:
Settings > Alert Settings
Here you can enable or adjust alerts for low glucose, high glucose, rapid rises and rapid falls. You can also manage the urgent low glucose alarm, choose how notifications are delivered, and adjust alert frequency where available.
Alert settings can be customised to suit your personal preferences. Make sure notifications, Bluetooth and the required app permissions are enabled on your smartphone so that GlucoSensor Q can provide alerts as intended.
A GlucoSensor Q sensor can be worn for up to 14 days. At the end of the sensor wear period, the sensor will stop providing glucose readings and you will need to place and activate a new sensor to continue continuous glucose monitoring (CGM).
To avoid interruptions in your glucose insights, we recommend having your next GlucoSensor Q sensor ready before the current sensor session ends.
Some users may experience skin irritation or an allergic reaction to the adhesive or other materials that come into contact with the skin.
Possible signs include redness, itching, swelling or persistent irritation around the sensor placement site. If this occurs, remove the sensor and discontinue use on the affected area. If symptoms are severe, persist or worsen, seek advice from a healthcare professional.
To help reduce skin irritation, place the sensor only on clean, dry and intact skin and follow the skin preparation and sensor placement instructions provided with GlucoSensor Q. If you know that you are sensitive to medical adhesives, discuss suitable skin-protection options with a healthcare professional before use.
To remove your GlucoSensor Q sensor, gently loosen the edge of the adhesive and slowly peel the sensor away from the skin.
If the adhesive is difficult to remove, you may use a suitable medical adhesive remover to help loosen it. Avoid pulling the sensor off quickly, as this may irritate the skin.
After removal, any remaining adhesive residue can be cleaned from the skin with warm water and mild soap or a suitable skin-cleansing product.
If the skin underneath the sensor is irritated, allow the area to recover before placing a new sensor on the same site.
Using GlucoSensor Q over a longer period can help you build a clearer picture of your personal glucose patterns and how they change over time.
Continuous glucose monitoring (CGM) provides ongoing insight into how factors such as food, exercise, sleep, stress and daily habits may affect your glucose. By observing these patterns over several weeks or months, you can better understand your individual glucose responses and gain deeper insight into your metabolic health.
Longer-term monitoring can also make it easier to identify recurring trends and compare how changes in your lifestyle are reflected in your glucose data.
GlucoSensor Q provides information and insights to support greater awareness of your glucose patterns. Individual results vary, and using a CGM does not in itself guarantee specific health outcomes.
Yes. GlucoSensor Q can be placed on the back of the upper arm or on the abdomen, in accordance with the recommended sensor placement instructions.
Choose an area with healthy, intact skin and avoid places with scars, irritation or other skin damage. It is also best to avoid areas that are frequently rubbed, compressed or bumped during daily activities or while sleeping.
For the best experience, rotate sensor placement sites and avoid placing a new sensor repeatedly in exactly the same location.
For detailed guidance on where and how to place your GlucoSensor Q sensor, please refer to the Instructions for Use and our instructional video.
You can place the GlucoSensor Q sensor yourself. It is designed for quick, easy and comfortable self-placement, so assistance from a healthcare professional is not normally required.
Simply follow the step-by-step instructions provided with the sensor. GlucoSensor Q can be placed on the back of the upper arm or on the abdomen.
For additional guidance, you can also refer to the Instructions for Use and the sensor placement tutorial on our website.
No. GlucoSensor Q should be removed before undergoing an MRI or CT scan unless your healthcare provider and the GlucoSensor Q Instructions for Use specifically indicate otherwise.
Medical imaging equipment can expose the sensor to conditions for which it may not be designed or validated. To avoid possible damage to the sensor or unreliable glucose readings, remove the sensor before the procedure and place a new GlucoSensor Q sensor afterwards.
Always inform the healthcare professional performing the procedure that you are wearing a continuous glucose monitoring (CGM) sensor and follow the instructions provided by the medical facility.
No. GlucoSensor Q sensors cannot be reused or replaced. Each sensor is designed for single use and can be worn for up to 14 days.
Once the sensor session has ended or the sensor has been removed, it must be replaced with a new GlucoSensor Q sensor to continue continuous glucose monitoring (CGM).
After use, dispose of the GlucoSensor Q sensor in accordance with local regulations for medical waste and used sharps.
Because the sensor contains a small insertion needle component, it should not be disposed of loosely with household waste. Where available, place the used sensor in an approved sharps container or follow the disposal instructions provided by your local healthcare or waste authority.
Do not reuse or dismantle the sensor before disposal.
The GlucoSensor Q CGM system has not been evaluated for use in people with implanted pacemakers, and compatibility with certain implantable medical devices has not been established.
If you have a pacemaker or another implanted medical device, consult your healthcare professional before using GlucoSensor Q and follow the instructions provided with your implanted device.
For additional safety information, please refer to the GlucoSensor Q Instructions for Use.
Yes. You can drink alcohol while wearing the GlucoSensor Q sensor.
Alcohol does not prevent the sensor from measuring your glucose, but it can affect your glucose levels and glucose patterns. Depending on factors such as the amount consumed, food intake and your individual response, glucose levels may rise or fall.
GlucoSensor Q can help you see how alcohol affects your personal glucose response over time. If you use insulin or glucose-lowering medication, follow the advice of your healthcare professional when consuming alcohol.
If GlucoSensor Q shows a low-glucose alert that does not match how you feel or what you expect, confirm your glucose level with a blood glucose meter before making treatment decisions.
CGM systems measure glucose in interstitial fluid, so readings may differ temporarily from blood glucose values, especially when glucose levels are changing rapidly. Pressure on the sensor, for example while sleeping on it, may also affect readings.
Check that the sensor is securely attached and correctly positioned. If unexpected low readings continue, consult the GlucoSensor Q Instructions for Use or contact GlucoSensor customer support.
GlucoSensor Q provides glucose information and alerts but does not replace professional medical advice. For questions about treatment, medication or recurrent hypoglycaemia, consult a healthcare professional.
Yes. GlucoSensor Q can be worn during sports, exercise and intense physical activity. Continuous glucose monitoring (CGM) can be particularly useful during training because it helps you see how your glucose responds before, during and after exercise.
Different types of activity can produce very different glucose patterns. Endurance exercise, high-intensity training, strength training, competition, food intake and recovery can all influence glucose in different ways. By following these patterns over time, GlucoSensor Q can help you better understand your personal response to training, nutrition and recovery.
For endurance athletes, CGM data may provide useful insight into how glucose changes during longer training sessions and around carbohydrate intake. For people doing strength or high-intensity training, it can help reveal how different workouts are reflected in glucose trends. For people focused on lifestyle, weight management or metabolic health, exercise data can provide additional insight into how physical activity fits into their overall glucose patterns.
Before exercise, make sure the sensor is securely attached. Sweat, repeated movement and friction from clothing or sports equipment may affect adhesion, so an adhesive overpatch can provide additional support during intensive activity. The sensor can be placed on the back of the upper arm or abdomen according to the GlucoSensor Q placement instructions.
Glucose can change quickly during and after exercise. Use GlucoSensor Q to observe your glucose trends and patterns, but do not rely on CGM data alone for treatment decisions. If a reading does not match how you feel or what you expect, verify it with a blood glucose meter.
For many users, the greatest value of CGM during sport is not a single reading, but the ability to recognise recurring patterns and better understand how training, food, recovery and daily habits affect glucose over time.
No. The GlucoSensor Q sensor does not need to be charged.
Each GlucoSensor Q is a fully integrated, single-use CGM sensor with its own built-in power source. There is no separate transmitter to charge, attach or reuse.
Once activated, the sensor works automatically for up to 14 days. At the end of the sensor session, simply replace it with a new GlucoSensor Q sensor.
Additional GlucoSensor Q sensors can be ordered directly through the GlucoSensor website.
You can choose the option that best suits your needs, including individual sensors, multi-sensor packs or a subscription for convenient recurring deliveries.
For the latest available options, visit the GlucoSensor Q product page on our website.
The GlucoSensor Q app can be updated through the Apple App Store or Google Play Store.
If automatic app updates are enabled on your smartphone, new versions will normally install automatically. To update the app manually, open the relevant app store, search for “GlucoSensor Q” and select “Update” if a newer version is available.
We recommend keeping both the GlucoSensor Q app and your smartphone operating system up to date to support compatibility, security and reliable app performance.
If the GlucoSensor Q app crashes, freezes or stops responding, follow these steps in order:
- Close and reopen the app
Completely close the GlucoSensor Q app and open it again.
If this does not solve the problem:
- Restart your smartphone
Turn your smartphone off and on again, then reopen the GlucoSensor Q app.
If the problem continues:
- Check for app updates
Open the Apple App Store or Google Play Store and check whether a newer version of the GlucoSensor Q app is available. Install the update if needed.
If the app still does not work correctly:
- Check Bluetooth and app permissions
Make sure Bluetooth is switched on and that the GlucoSensor Q app has the required permissions on your smartphone.
If the problem remains:
- Delete and reinstall the app
Delete the GlucoSensor Q app from your smartphone and reinstall the latest version from the Apple App Store or Google Play Store. Then log in again and reconnect your sensor if required.
If none of these steps solve the problem:
- Contact GlucoSensor customer support
Please provide your smartphone model, operating system version and any error message shown in the app so we can help you further.
Yes. The GlucoSensor Q app is designed to protect your personal and glucose data using appropriate technical and organisational security measures.
Most data is stored locally on your smartphone. Where data needs to be transferred to our servers to support specific app functions, it is transmitted securely and stored on servers located within the European Union.
Where appropriate, data transferred to the server is pseudonymised to reduce the amount of directly identifiable personal information being processed.
The GlucoSensor Q app and supporting systems are designed and operated in accordance with applicable European data protection requirements, including the GDPR, as well as relevant requirements for medical devices under the EU MDR.
For full details about how your personal data and glucose data are collected, processed, stored and protected, please refer to our Privacy Policy.
- Contact GlucoSensor customer support. Please provide your smartphone model, operating system version, app version and any error message shown in the app.
If your GlucoSensor Q app data is not syncing correctly, follow these steps in order.
- Check your internet connection. Make sure your smartphone has a stable WiFi or mobile data connection.
If the problem continues:
- Close and reopen the app. Completely close the GlucoSensor Q app and open it again.
If the data still does not sync:
- Check Bluetooth. Make sure Bluetooth is enabled so the app can communicate with your GlucoSensor Q sensor.
If the problem remains:
- Check for app updates. Open the Apple App Store or Google Play Store and install the latest version of the GlucoSensor Q app if an update is available.
If syncing is still not working:
- Restart your smartphone. After restarting, reopen the GlucoSensor Q app and check whether the connection has been restored.
If none of these steps solve the problem:
- Contact GlucoSensor customer support. Please provide your smartphone model, operating system version, app version and any error message shown in the app.
You can share your GlucoSensor Q data in two ways.
- Follow/Share
The GlucoSensor Q app includes a Follow/Share function that allows you to share glucose data with another person, including a healthcare professional. This can be useful when ongoing access to your glucose information is helpful. - Automatic Report Generator (ARG)
The GlucoSensor Q app also includes an Automatic Report Generator. This allows you to create a PDF report covering a selected period of use. The report can include your glucose data, trends and other relevant information from that period.
Once the PDF report has been generated, you can share it yourself with your healthcare professional, for example by email or another method of your choice.
For most healthcare consultations, the PDF report provides a convenient way to review your glucose patterns and trends over a defined period.
GlucoSensor Q continuously measures your glucose and updates your glucose information throughout the day, so there is no fixed number of times you need to check the app.
You can view your glucose whenever it is useful to you, for example to understand how food, exercise, sleep, stress or other daily habits affect your glucose patterns. Over time, this can help you gain a better understanding of your personal glucose response and metabolic health.
If you use GlucoSensor Q as part of diabetes management, follow the guidance of your healthcare professional regarding how often to review your glucose data and how to use it in relation to medication or treatment decisions.
If a GlucoSensor Q reading does not match how you feel or what you expect, confirm your glucose with a blood glucose meter before making treatment decisions.
Yes. The GlucoSensor Q app allows you to customize glucose alerts and notification settings based on your personal preferences.
Go to:
Settings > Alert Settings
Here you can configure:
• Low Glucose Alerts and your preferred low-glucose threshold
• High Glucose Alerts and your preferred high-glucose threshold
• Rise Rate Alerts for rapidly increasing glucose levels
• Fall Rate Alerts for rapidly decreasing glucose levels
• Urgent Low Alarm settings
• Alert notifications, including sound and vibration
• Alert frequency settings
This allows you to tailor the GlucoSensor Q alert system to the way you want to monitor your glucose.
No. GlucoSensor Q does not require calibration, and manual calibration by the user is not possible.
The sensor is designed to provide glucose readings automatically throughout its wear period without the need to enter finger-prick values into the app.
If a GlucoSensor Q reading differs from a blood glucose measurement, allow some time for the sensor readings to stabilise. Temporary differences can occur, especially shortly after placing a new sensor or when glucose levels are changing rapidly.
If a reading does not match how you feel or what you expect, verify your glucose with a blood glucose meter before making treatment decisions. If significant differences continue, consult the GlucoSensor Q Instructions for Use or contact GlucoSensor customer support.
t is normal for a CGM reading and a blood glucose meter reading to differ to some extent. GlucoSensor Q measures glucose in interstitial fluid, while a blood glucose meter measures glucose directly in the blood.
Because glucose moves from the bloodstream into the interstitial fluid with a natural delay, CGM readings may lag behind blood glucose values by approximately 5 to 15 minutes. The exact delay can vary between individuals and may also depend on how quickly glucose levels are rising or falling.
If the difference is larger than expected, wait a short while and check the glucose trend in the GlucoSensor Q app. The sensor may need some time to stabilise, especially shortly after placement or during periods of rapid glucose change. As the sensor continues to stabilise, readings may become more closely aligned with your blood glucose measurements.
Also make sure the sensor is securely attached and placed according to the instructions.
If the GlucoSensor Q reading does not match how you feel or what you expect, use a blood glucose meter before making treatment decisions. If significant differences continue, consult the GlucoSensor Q Instructions for Use, contact GlucoSensor customer support, or seek advice from a healthcare professional.
After use, dispose of the GlucoSensor Q sensor in accordance with your local regulations for medical waste, electronic devices, batteries and sharps.
Do not dismantle the sensor before disposal. Where available, place the used sensor in an approved sharps or medical-waste container, or follow the disposal instructions provided by your local waste or healthcare authority.
If you are unsure how to dispose of the sensor in your area, contact your local waste-management authority for guidance.
Unopened GlucoSensor Q sensors can be stored until the expiration date printed on the packaging, provided they are stored according to the specified storage conditions.
Keep sensors in their original, unopened packaging and protect them from excessive heat, freezing, moisture and direct sunlight. Do not use a sensor if it has passed its expiration date or if the packaging has been opened, damaged or otherwise compromised.
Yes. You can travel with GlucoSensor Q and continue monitoring your glucose while you are away.
When travelling by air, inform airport security staff that you are wearing a continuous glucose monitoring (CGM) sensor if required and follow the airport’s screening procedures and the instructions provided in the GlucoSensor Q Instructions for Use.
During the flight, you can put your smartphone in airplane mode and keep Bluetooth enabled so the GlucoSensor Q app can remain connected to your sensor. Always follow the instructions of the airline and cabin crew regarding the use of electronic devices.
We recommend carrying sufficient GlucoSensor Q sensors and adhesive overpatches for your trip, preferably in your hand luggage. It can also be useful to carry documentation stating that you are travelling with a medical device, particularly when travelling internationally.
Before travelling, make sure your smartphone is compatible with the GlucoSensor Q app and that you have everything you need to continue monitoring your glucose throughout your trip.
Yes. The GlucoSensor Q sensor is water-resistant and has an IP27 rating. It can be worn while showering and swimming.
The sensor can withstand temporary immersion in water up to 1 metre deep for a maximum of 30 minutes. Avoid prolonged exposure to water, greater depths and very hot environments such as hot tubs or saunas, as these conditions may affect the sensor or its adhesion.
Chlorinated water, such as in swimming pools and jacuzzis, can weaken the adhesive over time because chlorine may act as a solvent. This can increase the risk of the sensor becoming loose or detached. For extra security during swimming or other water activities, we recommend using an adhesive overpatch to help keep the sensor firmly in place.
After swimming or showering, gently dry the sensor and surrounding skin and check that the sensor remains securely attached.
GlucoSensor Q has not been specifically evaluated, clinically validated or approved for use during pregnancy or for gestational diabetes.
If you are pregnant and already use continuous glucose monitoring for diabetes, or if you have or are being monitored for gestational diabetes, consult your healthcare professional before using GlucoSensor Q.
During pregnancy, glucose monitoring and treatment should always be managed in accordance with the recommendations of your healthcare professional. GlucoSensor Q should not be used as a substitute for pregnancy-specific diabetes care, clinically recommended glucose monitoring or medical supervision.
GlucoSensor Q is designed to operate as a standalone continuous glucose monitoring system, but compatibility with every other medical device has not been established.
The system has not been evaluated for use in people with implanted pacemakers. If you have a pacemaker or another implanted medical device, consult your healthcare professional before using GlucoSensor Q.
GlucoSensor Q should also not be connected to automated insulin dosing systems, closed-loop systems, insulin-suspension systems or other connected medical systems unless this has been expressly authorised by the manufacturer.
During certain medical procedures, additional precautions also apply. GlucoSensor Q must not be worn during MRI, diathermy, electrocautery or electrosurgical procedures, and CT scans may affect device performance. Always follow the GlucoSensor Q Instructions for Use and the instructions of the healthcare professional performing the procedure.
If your GlucoSensor Q sensor becomes loose or falls off, do not attempt to reattach or reuse it. Place a new sensor according to the Instructions for Use.
To help reduce the risk of detachment, we recommend using the supplied adhesive overpatch, especially during sports, swimming or other activities that may place extra stress on the sensor.
Premature detachment caused by external factors such as impact, friction, clothing, swimming, chlorine exposure or incorrect placement is generally not covered by our replacement policy.
If you believe the sensor became detached because of a product or adhesive defect, please contact GlucoSensor customer support. Any replacement request will be assessed in accordance with our Replacement Policy.
No. GlucoSensor Q is not intended to be connected to or used as part of an insulin pump system.
The GlucoSensor Q CGM system must not be used with automated insulin dosing (AID) systems, including closed-loop systems or insulin-suspension systems, unless this has been expressly authorised by the manufacturer. GlucoSensor Q data should also not be used through unauthorised third-party software to guide insulin dosing decisions.
If you use an insulin pump independently from GlucoSensor Q, discuss with your healthcare professional how glucose information from the CGM should be used in your diabetes management. GlucoSensor Q does not directly control or communicate with an insulin pump.
Your GlucoSensor Q system is working correctly when the app is receiving glucose readings as expected, the sensor is securely attached and there are no active sensor or system error messages.
Always consider your symptoms together with your CGM readings. If a glucose reading does not match how you feel or what you expect, verify your glucose with a blood glucose meter before making treatment decisions.
Also check that Bluetooth is enabled, the GlucoSensor Q app is running correctly and the sensor remains securely attached. A loose or partially detached sensor may result in missing readings or alerts.
If you experience repeated data gaps, unexpected readings, sensor errors or other problems, consult the GlucoSensor Q Instructions for Use or contact GlucoSensor customer support.
There is no separate reset function for the GlucoSensor Q sensor itself.
If the system or app is not working as expected, first close and reopen the GlucoSensor Q app. If the problem continues, restart your smartphone and open the app again.
If the issue still remains, check whether an app update is available and make sure Bluetooth is enabled and the required app permissions are allowed.
As a final troubleshooting step, you can delete and reinstall the GlucoSensor Q app from the Apple App Store or Google Play Store. After reinstalling, log in again and reconnect the sensor if required.
If the problem continues after these steps, contact GlucoSensor customer support.
GlucoSensor Q should only be used within the environmental conditions specified in the Instructions for Use.
The sensor is designed to operate at temperatures between 5°C and 40°C and at a relative humidity of 10% to 90%. Exposure to temperatures or environmental conditions outside these limits may affect sensor performance.
Avoid prolonged exposure to extreme heat, freezing conditions or direct sunlight. If you are in very hot or very cold conditions, try to keep the sensor within the recommended operating range and monitor the GlucoSensor Q app for unexpected readings, data interruptions or system warnings.
Unopened sensors should be stored and transported between 2°C and 30°C and should never be frozen.
If the sensor has been exposed to conditions outside the recommended range and its readings no longer match how you feel or what you expect, verify your glucose with a blood glucose meter before making treatment decisions.
If your GlucoSensor Q sensor is not connecting to the app, try these steps in order:
- Make sure Bluetooth is enabled on your smartphone and keep the phone close to the sensor.
- Close the GlucoSensor Q app completely and reopen it.
- If the connection is still not restored, restart your smartphone and open the app again.
- Check whether an update is available for the GlucoSensor Q app and make sure your smartphone operating system is up to date.
- In the GlucoSensor Q app, go to the Sensor settings and check whether the sensor is still paired. If necessary, follow the in-app instructions to reconnect or pair the sensor again.
- Make sure the GlucoSensor Q app has the required Bluetooth and notification permissions and that battery-saving or background restrictions are not preventing the app from communicating with the sensor.
If the sensor still does not connect, contact GlucoSensor customer support and provide your smartphone model, operating system version, app version and any error message shown in the app.
The GlucoSensor Q app helps you understand how your glucose changes over time and how factors such as food, exercise, sleep, stress and daily habits may affect your glucose patterns.
Look beyond individual glucose readings and focus on recurring trends. For example, you may notice glucose increases after certain meals, different responses to exercise, or patterns that occur at particular times of day.
The Trends section provides tools such as Time in Range (TIR), Ambulatory Glucose Profile (AGP), average glucose values and multi-day glucose profiles to help you review glucose variability and patterns over a selected period.
You can also use your personal glucose range and alert settings to help put individual readings into context. These settings can be adjusted according to your personal preferences or recommendations from your healthcare professional.
For lifestyle use, comparing several days or weeks of data can help you better understand your personal glucose response and metabolic health. If you use GlucoSensor Q for diabetes management, discuss significant or recurring patterns with your healthcare professional before making changes to medication or treatment.
If a GlucoSensor Q reading looks unusual or does not match how you feel or what you expect, verify your glucose with a blood glucose meter before making treatment decisions.
Keep in mind that GlucoSensor Q measures glucose in interstitial fluid, so readings can temporarily differ from blood glucose values, especially when glucose is changing rapidly after meals, exercise or insulin use.
Also check that the sensor is securely attached and has not become loose or partially detached. Do not try to reposition or reinsert a sensor that has already been placed.
If the unexpected readings continue, allow some time for the sensor to stabilise, review the GlucoSensor Q Instructions for Use and contact GlucoSensor customer support if necessary.
Each GlucoSensor Q sensor can be worn for up to 14 days. The GlucoSensor Q app shows the active sensor’s expiration date and time and will indicate when the sensor session has ended.
Replace the sensor when the 14-day wear period has ended or when the app indicates that the sensor has expired.
You should also replace the sensor earlier if it becomes loose or detached, is damaged, or if the app indicates that the sensor can no longer be used. Do not attempt to reinsert, reposition or reuse a sensor after removal.
If you experience temporary missing readings or an unexpected glucose value, this does not automatically mean that the sensor needs to be replaced. Follow the troubleshooting guidance first and contact GlucoSensor customer support if the problem continues.
After placing and activating a new GlucoSensor Q sensor, there is a warm-up period of approximately 60 minutes before glucose readings become available.
During this time, the sensor is starting up and stabilising. Once the warm-up period is complete, glucose data will begin appearing automatically in the GlucoSensor Q app.
The GlucoSensor Q app is available for compatible Apple iPhone and Android smartphones through the Apple App Store and Google Play Store.
Your smartphone must meet the current software and technical requirements for the GlucoSensor Q app, including Bluetooth connectivity and the required operating-system permissions. Compatibility may change when smartphone manufacturers or operating-system providers release updates.
Before using GlucoSensor Q, check the latest smartphone and operating-system compatibility information provided on the GlucoSensor website.
An internet connection is required to log in to the GlucoSensor Q app and for certain online functions.
Once you are logged in and an active GlucoSensor Q sensor is connected, the sensor communicates directly with your smartphone via Bluetooth. This means you can continue to view your glucose readings without an internet connection, as long as Bluetooth remains enabled and the sensor stays within communication range.
For example, GlucoSensor Q can continue to function during a flight when your smartphone is in airplane mode, provided Bluetooth is switched back on and permitted by the airline.
Some functions, such as account services, data sharing or other online features, may not be available until an internet connection is restored.
If your smartphone moves outside the Bluetooth communication range of the GlucoSensor Q sensor, the connection may be temporarily interrupted and new glucose readings or alerts may not appear in the app.
The GlucoSensor Q app will first try to restore the Bluetooth connection automatically when your smartphone is back within range of the sensor.
If the connection is not restored automatically, a Reconnect button will appear on the Home screen of the app. Tap Reconnect to make your smartphone actively search for the sensor and restore the connection.
Once the connection has been restored, glucose data collected during the interruption may synchronise with the app.
Keep Bluetooth enabled and your smartphone reasonably close to the sensor whenever possible, especially if you rely on glucose alerts.
Yes. You can continue using an active GlucoSensor Q sensor after changing smartphones, but the sensor must be paired with the new phone.
Install the GlucoSensor Q app on the new smartphone, log in to your GlucoSensor account and make sure Bluetooth and the required app permissions are enabled.
To pair the active sensor with the new smartphone, scan the QR code on the original sensor applicator.
If the applicator has already been discarded, open the GlucoSensor Q app on your old smartphone and note the sensor serial number shown in the upper-left corner of the Home screen. During pairing on the new smartphone, enter this serial number manually instead of scanning the QR code.
If the sensor does not connect, restart the new smartphone, reopen the app and try pairing again. If the problem continues, contact GlucoSensor customer support.
You can wear GlucoSensor Q while sleeping, but avoid prolonged pressure directly on the sensor.
Pressure from sleeping on the sensor can affect the placement site and may temporarily influence sensor readings. For this reason, choose a placement site that is unlikely to be compressed while you sleep.
If you notice an unexpected low reading while lying on the sensor, change position and review the glucose trend. If the reading does not match how you feel or what you expect, verify your glucose with a blood glucose meter before making treatment decisions.
The Instructions for Use specifically recommend avoiding placement areas exposed to pressure, friction or tight clothing.
Yes. It is recommended to use a different placement site when starting a new GlucoSensor Q sensor.
GlucoSensor Q can be placed on the back of the upper arm or on the abdomen. Choose healthy, intact skin and avoid areas that are irritated, scarred, hardened, damaged or regularly exposed to pressure or friction.
Rotating the placement site gives the skin time to recover between sensor sessions and can help reduce irritation.
If a placement site remains red, painful or irritated after sensor removal, allow the area to recover before using that location again.
A small amount of bleeding can occasionally occur during sensor placement if a small blood vessel is touched. This is not unusual and is usually limited to the placement site.
Gently clean any blood around the sensor placement area without rubbing or pressing on the site.
According to the GlucoSensor Q Instructions for Use, if bleeding occurs at the sensor placement site, remove and discard the sensor and check the skin for continued bleeding or irritation before placing a new sensor at a different approved placement site.
Do not attempt to reinsert or reuse the removed sensor.
If bleeding continues, is unusually heavy, or the area becomes painful, swollen or irritated, seek medical advice.
A GlucoSensor Q sensor should not remain painful or cause significant discomfort during use.
If the placement site becomes painful, increasingly red, swollen or irritated, remove the sensor and place a new sensor at a different approved placement site after checking that the skin is suitable.
Avoid placement areas exposed to friction, bending, pressure or tight clothing. Do not place a new sensor on irritated, scarred, hardened or damaged skin.
If pain or irritation continues after removing the sensor, or if you notice swelling, discharge or signs of infection, consult a healthcare professional.
Medicines, supplements, medical treatments and other physiological factors can affect glucose levels, and some substances may also affect the performance of glucose-monitoring systems.
If you start a new medicine or supplement and notice unexpected GlucoSensor Q readings, consider the glucose trend together with how you feel.
If a reading does not match your symptoms or expectations, confirm your glucose with a blood glucose meter before making treatment decisions.
For information about medicines or substances that may specifically affect GlucoSensor Q, always refer to the current Instructions for Use and consult your healthcare professional if necessary.
If your GlucoSensor Q sensor stops providing readings before the end of the 14-day wear period, first check that Bluetooth is enabled, your smartphone is within communication range and the GlucoSensor Q app is running correctly.
If the app shows a Replace Sensor message, stop the current sensor session and place a new GlucoSensor Q sensor.
A sensor that needs to be replaced before the end of its intended wear period may qualify for replacement under the GlucoSensor Q Sensor Replacement Policy. Replacement requests are assessed individually and may require information such as the sensor serial number, activation date, screenshots or error messages.
Please see our Sensor Replacement Policy for the applicable conditions and replacement procedure.
If no glucose readings appear after the GlucoSensor Q warm-up period, first check that Bluetooth is enabled and that your smartphone is within communication range of the sensor.
Make sure the GlucoSensor Q app is running correctly and check the connection status on the Home screen. If necessary, close and reopen the app or restart your smartphone.
The app will first try to restore the connection automatically. If this does not work and a Reconnect button appears on the Home screen, tap the button to actively search for and reconnect to the sensor.
If glucose readings still do not appear, contact GlucoSensor customer support. The IFU confirms that missing readings can be caused by the warm-up period or a temporary Bluetooth connection issue.
If the GlucoSensor Q app displays Replace Sensor, the current sensor can no longer be used and should be replaced with a new GlucoSensor Q sensor.
Remove the current sensor, place and activate a new sensor, and start a new sensor session.
If Replace Sensor appears before the end of the intended 14-day wear period, the sensor may qualify for replacement under the GlucoSensor Q Sensor Replacement Policy. Replacement requests are assessed individually according to the conditions of the policy.
If only the edges of the adhesive begin to lift, you can use an adhesive overpatch or suitable medical tape to help keep the sensor securely in place.
However, if the sensor itself has moved, become significantly loose or is no longer correctly positioned, do not push it back into the skin or attempt to reposition it.
Remove the sensor and start a new sensor session with a new GlucoSensor Q sensor. A removed sensor cannot be reinserted or reused.
If the applicator does not place the sensor correctly, do not attempt to reuse or modify the applicator.
If the applicator remains attached after sensor placement, gently pull it straight upward while holding the adhesive patch against the skin. Do not force, dismantle or reuse the applicator.
If the applicator cannot be removed safely, the sensor was not placed correctly, or the applicator appears defective, contact GlucoSensor customer support.
A verified placement or applicator-related product fault may be assessed under the GlucoSensor Q Sensor Replacement Policy.
Do not attempt to remove a sensor filament yourself if it remains under the skin after sensor removal.
If you experience persistent pain, inflammation, signs of infection or other concerns, seek medical attention.
Contact GlucoSensor customer support as well so the incident can be documented and assessed.
No. GlucoSensor Q should be placed on healthy, intact skin and should not be placed directly over tattoos, moles, irritated or damaged skin, severe scarring or areas with excessive body hair.
You should also avoid areas exposed to frequent pressure or friction and areas close to infusion or injection sites.
Choose an appropriate placement site on the back of the upper arm or abdomen and follow the placement instructions in the GlucoSensor Q Instructions for Use.
If your smartphone is switched off or runs out of battery, the GlucoSensor Q app cannot display new glucose readings or provide alerts on the phone during that period.
Once the smartphone is switched back on and Bluetooth communication with the sensor is restored, stored glucose data may automatically synchronise if data was collected during the interruption.
Keep your smartphone powered on, sufficiently charged and within communication range whenever possible, especially if you rely on glucose alerts.
GlucoSensor Q should only be used within the environmental conditions specified in the Instructions for Use.
The sensor is designed to operate between 5°C and 40°C and within the specified humidity range. Excessive heat, steam or prolonged water exposure may fall outside these operating conditions and may also affect sensor adhesion.
For this reason, avoid exposing GlucoSensor Q to very hot environments such as saunas, steam rooms or hot tubs where the permitted temperature or environmental conditions may be exceeded.
Consult your healthcare professional before using GlucoSensor Q if you are undergoing dialysis, have a blood-clotting disorder or are receiving anticoagulant treatment.
The GlucoSensor Q system has not been evaluated in patients undergoing peritoneal dialysis, and the Instructions for Use specifically advise users with dialysis treatment, implanted pacemakers or blood-clotting disorders to consult a healthcare professional before use.
If you use anticoagulant medication or have an increased risk of bleeding, discuss sensor placement and CGM use with your healthcare professional before starting GlucoSensor Q.
A Connection Warning does not automatically mean that the sensor needs to be replaced.
First check that Bluetooth is enabled and that your smartphone is within communication range of the sensor. The app will try to restore the connection automatically. If this does not work, use the Reconnect function on the Home screen, reopen the app or restart your smartphone if necessary.
If a sensor error continues, follow the instructions shown in the app.
If the app displays Replace Sensor, stop the current sensor session and place a new sensor. If this happens before the end of the 14-day wear period, refer to the Sensor Replacement Policy.
es. You can end the current sensor session and start a new GlucoSensor Q sensor before the current sensor reaches the end of its 14-day wear period.
Once a sensor has been removed, it cannot be reinserted, reactivated or reused.
Keep in mind that voluntarily removing a functioning sensor before the end of its intended wear period does not normally mean that the sensor qualifies for free replacement under the Sensor Replacement Policy.
Providing the right information helps GlucoSensor customer support investigate sensor or app problems more quickly.
Where relevant, have your order number, GlucoSensor account email address, sensor serial number, activation date, date and time of the problem, smartphone model, operating-system version and GlucoSensor Q app version available.
For sensor errors or replacement requests, customer support may also ask for screenshots or error messages, photos of the sensor or packaging, the sensor placement site, and a description of what happened.
Do not discard a potentially defective sensor or its packaging until customer support has confirmed that they are no longer needed for assessment.