CGM System

Medical Knowledge

How to Use BUZUD CGM for Glucose Management and Treatment Decisions

With BUZUD CGM, you can make treatment decisions without relying on a blood glucose (BG) meter.However, until you are fully confident in using the CGM, it's recommended to continue using a meter—especially in special situations or when glucose levels are changing rapidly.Do not rush the transition. It may take days, weeks, or even longer for you to feel comfortable using CGM data to guide treatment decisions.Work closely with your healthcare professional to regularly review your CGM readings and physical symptoms to determine what works best for you.When Can You Use BUZUD CGM for Treatment Decisions?You can use BUZUD CGM data for treatment decisions when you see both a glucose value and a trend steady arrow displayed on the BUZUD app home screen.BUZUD CGM uses arrows to indicate the direction and speed of glucose changes. The meaning of each trend arrow is as follows:When Should You Use a Blood Glucose Meter?When no glucose value or trend arrow appears in the BUZUD appWhen your physical symptoms do not match the CGM reading (e.g., you feel dizzy or sweaty, but CGM shows a normal value)In these cases, use your blood glucose meter and rely on that reading for any treatment decisions.When Should You Watch and Wait?Avoid taking multiple insulin doses too close together (known as "insulin stacking")Wait at least 2 hours between insulin dosesIf a rapid change is shown in the trend arrows, or after a recent dose or meal, it's best to monitor the trend before making further adjustmentsIf you are unsure about a reading or do not feel well, consult your doctor or contact BUZUD support for assistance.

Mechanism Analysis and Clinical Recommendations for Compression-Induced False Hypoglycemia in CGM

1. BackgroundWith the widespread adoption of Continuous Glucose Monitoring (CGM) systems in diabetes management, their technical limitations have become increasingly evident. A common artifact seen in clinical practice is compression-induced false hypoglycemia, commonly referred to as “compression low.” This typically occurs at night, presenting as low glucose alarms from CGM devices without symptoms or confirmation via capillary blood glucose testing.This white paper aims to systematically analyze the mechanism, brand-specific differences, clinical identification, and management strategies of compression low based on published studies and manufacturer documentation, to help medical professionals enhance their ability to interpret CGM data anomalies.2. Definition and Clinical ManifestationsCompression-induced false hypoglycemia refers to the inaccurate low glucose readings detected by CGM sensors under mechanical pressure (e.g., lying on the sensor during sleep), due to impaired interstitial fluid flow at the sensor site.Common clinical signs include:Sudden drop and rapid recovery patterns on CGM curves during nighttime;Absence of typical hypoglycemia symptoms;Discrepancy between CGM readings and capillary blood glucose values;Sensor readings normalize after pressure is relieved.3. Mechanisms1. Restricted Interstitial Fluid PerfusionCGM sensors measure glucose concentration in interstitial fluid, not directly in blood. External pressure reduces local capillary perfusion and slows interstitial fluid exchange, leading to artificially low readings.2. Extended Lag EffectAfter pressure is relieved, glucose recovery in the interstitial fluid takes time. This physiological lag causes continued falsely low readings even after the compression is gone.3. Probe DisplacementMechanical force may alter the insertion angle or depth of the sensor probe, shifting it to a low-perfusion or non-target area, thus compromising signal reliability.4. Clinical Evidence and FrequencyKey Studies:Mensh BD, 2013, J Diabetes Sci Technol: Demonstrated significantly increased false low risk from sleeping on the sensor.Facchinetti A, 2016, Diabetes Technol Ther: Found that median compression low events lasted ~45 minutes (range 30–70 mins) in Dexcom G4 users, mostly occurring at night.Helton J, 2011: Modeled CGM errors based on interstitial fluid dynamics and first proposed compression-perfusion interplay as a mechanism.Frequency Observations:Nighttime is a high-risk period, especially during prolonged sleep in one position;Sensors worn for longer durations, with poor fixation or improper adhesion, are more prone to this artifact;Most users may encounter 1–3 compression low events during a typical 7-day CGM cycle.5. Brand-Specific DifferencesDexcomOfficial documentation explicitly acknowledges compression lows;Recommends sensor placement in low-pressure areas (e.g., lateral abdomen, back of the upper arm);G6/G7 systems offer faster recovery but cannot completely eliminate the issue.Abbott FreeStyle LibreThe user manual does not explicitly define compression low, but highlights that sensor dislodgement or poor adhesion can cause falsely low readings;Clinical reports indicate Libre 2/3 sensors are more susceptible, especially in lean individuals.Medtronic Guardian SensorAdvises against sensor placement in areas prone to motion or compression;Compression-induced errors may falsely trigger SmartGuard automatic insulin suspension, affecting insulin delivery.Senseonics Eversense (Implantable CGM)As a fully implantable sensor, Eversense is largely immune to external pressure effects;No reported cases of compression lows, making it unique among CGM systems.BUZUD CGMBUZUD uses a subcutaneous sensor structure similar to traditional CGMs, supporting real-time glucose monitoring;Preliminary testing shows improved resistance to compression-related signal artifacts due to enhanced stability and adhesion;Compression lows may still occur; BUZUD advises avoiding sensor placement in areas likely to be compressed during sleep;If abnormal readings occur, users are encouraged to confirm via capillary blood glucose testing.6. Clinical Management RecommendationsIdentification Criteria:CGM curve shows sudden drop with rapid rebound, inconsistent with true hypoglycemia;No symptoms of hypoglycemia present;Strong correlation with sleep position or pressure on the sensor area.Response Strategies:Educate patients to choose sensor sites unlikely to be compressed while lying down;Do not immediately treat CGM-reported lows with carbohydrates—verify with fingerstick first;Label these events in medical records as “compression-induced artifacts” to avoid misdiagnosis or overtreatment;If frequently recurring, reassess adhesion method and device stability, and contact manufacturer if needed;Encourage CGM manufacturers to optimize algorithms that detect compression-related patterns to reduce false alarms.7. ConclusionCompression-induced false hypoglycemia is a CGM-specific artifact that poses challenges to accurate diabetes management. Its relatively frequent occurrence and potential clinical impact necessitate better understanding among healthcare providers.By improving clinical recognition, educating users on proper placement and sleep behavior, and working with device manufacturers to enhance signal processing, the burden of this artifact on clinical decision-making can be significantly reduced.It is recommended that all diabetes care teams include this topic in CGM interpretation training to strengthen understanding of device limitations and improve patient outcomes.

What is Time in Range (TIR)?

Time in Range (TIR) refers to the percentage of time that a person's glucose levels stay within a defined target range. It is a key indicator for assessing the quality of glucose control, typically based on data collected from continuous glucose monitoring (CGM) devices.TIR reflects the proportion of time that glucose levels fall into three general categories:Target Range: 3.9–10.0 mmol/LVery High: Above 13.9 mmol/LVery Low: Below 3.0 mmol/LThese thresholds are based on international clinical consensus, but doctors may adjust them according to individual needs.Why is TIR important?TIR provides a more dynamic view of daily glucose control than A1C alone.Maintaining a higher TIR (e.g., above 70%) is associated with reduced risk of complications.TIR is useful for evaluating treatment effectiveness, medication response, or lifestyle changes.TIR is becoming a standard metric in diabetes management and supports more personalized, real-time care.

What is the AGP Report?

The Ambulatory Glucose Profile (AGP) is a standardized glucose report developed and licensed by the International Diabetes Center (IDC).The AGP report compiles continuous glucose monitoring (CGM) data over a period of time to provide a comprehensive overview of glucose trends, offering a big-picture view of diabetes management.It is important to note that the AGP is just one tool for understanding glucose patterns. It should be interpreted in combination with lifestyle, medication use, and other medical information.

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Troubleshooting

What if I Have Issues with the BUZUD CGM While Traveling?

If you encounter any issues with your BUZUD CGM while you're on the go, don't worry!Before uninstalling or reinstalling the app, we recommend that you visit the official BUZUD website or contact our technical support team. They will be happy to assist you in troubleshooting any problems and help ensure your device continues to function properly throughout your trip.

What does 'Calibration Failed' mean?

When you see a "Calibration Failed" message, it means that you recently entered a fingerstick blood glucose value, but your BUZUD CGM sensor is having trouble calibrating.Please follow the instructions on the screen:If the message says "You can only enter the current time and earlier times", make sure the time you entered is not in the future.If the message says "If the issue persists after retrying, please contact customer support", wait 15 minutes and try entering your fingerstick reading again.If calibration continues to fail after multiple attempts, please contact customer support for assistance.

Android™ 15 Is Compatible, But I’m Still Experiencing Signal Loss

The BUZUD CGM system is now compatible* with the latest version of Android™ 15.However, if you're experiencing Signal Loss after pairing a sensor, it's possible that your phone has not yet received the full official version of Android 15. Manufacturers and mobile carriers release updates at different times. We recommend checking for any additional system updates for your phone and installing them promptly.If you're experiencing signal loss, try the following actions:(These steps may take up to 15 minutes to take effect.)Turn Bluetooth off, then turn it back on and keep it enabled.Keep your display device within 10 meters (33 feet) of the sensor, with no obstructions (such as your body, walls, or water) between them.Keep your phone on the same side of your body as the sensor. Bluetooth works best when the sensor and the display device are within line of sight.Keep the BUZUD CGM app open. Do not swipe it away or force close it.If the issue continues, restart your phone and the app.* Compatibility may vary by device model and manufacturer update schedule. Please refer to BUZUD’s official compatibility list for more information.

What Does the "Signal Loss" Alert Mean?

What Does the "Signal Loss" Alert Mean?The Signal Loss alert in the BUZUD CGM system notifies you when your display device (such as a smartphone) is no longer receiving glucose readings from the transmitter.Possible Causes:The transmitter and display device are more than 20 feet (6 meters) apartObstacles like walls, water, or the human body are blocking the Bluetooth signalThe BUZUD CGM app has been closed or Bluetooth has been turned offHow to Fix Signal Loss:Keep your transmitter and display device within 20 feet (6 meters) of each otherWait approximately 30 minutes to allow automatic reconnectionDo not manually close the BUZUD CGM app – it should always run in the backgroundIf the problem persists:Turn your phone's Bluetooth off and then back on, and wait 10 minutesRestart your smartphone and reopen the BUZUD CGM appClose other background apps to free up system resourcesMake sure your phone is charged and not in Low Power Mode, as this may disable BluetoothDuring Signal Loss:Use a blood glucose meter (fingerstick) to check your glucose levels and make any necessary treatment decisions.Do not rely solely on the BUZUD CGM during signal loss.Additional Notes:Once the transmitter reconnects to the display device, up to 15 days of missed glucose data can automatically be restored and displayed in your app’s graphApple Users: Unlike other alerts, the Signal Loss alert cannot play a sound or vibrate when your iPhone is in Silent or Do Not Disturb modeIf you frequently experience signal loss, check that your smartphone model is compatible, Bluetooth permissions are granted, and your phone’s battery settings allow background activity.For further support, contact BUZUD Customer Service.

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Product Introduction

Introducing the BUZUD Continuous Glucose Monitoring System 2.0

The video introduces the newest-generation BUZUD CGM 2.0, highlighting its sleek, water-resistant design, comfortable 15-day wear, and real-time glucose monitoring features.

What is Continuous Glucose Monitoring (CGM)?

What is Continuous Glucose Monitoring (CGM)?BUZUD Continuous Glucose Monitoring (CGM) system continuously tracks your glucose levels throughout the day and night, and automatically alerts you when your glucose goes too high or too low—helping you respond proactively.The CGM system measures glucose at regular intervals every few minutes, 24/7. These readings are translated into dynamic charts that clearly show glucose trends and the rate of change, giving you a comprehensive view of your glucose fluctuations and helping you make more informed lifestyle and treatment decisions.

How Does the BUZUD CGM System Work?

The BUZUD Continuous Glucose Monitoring (CGM) system tracks your glucose levels continuously throughout the day and night.Here’s how it works:An automatic applicator inserts a very thin sensor wire just beneath the skin.An adhesive patch secures the sensor in place.The sensor continuously measures glucose levels in the interstitial fluid 24/7.A small, reusable transmitter attaches to the sensor and wirelessly sends real-time glucose readings to your compatible smart device (such as a smartphone).Through the BUZUD App, you can view your current glucose levels and historical trends at any time.The app can also be customized to send personalized alerts when your glucose levels go above or below preset thresholds.BUZUD CGM provides continuous, real-time glucose insights, helping you manage your blood sugar more confidently and proactively.

Data Understanding & Accuracy

Is My BUZUD CGMs Sensor Accurate?

BUZUD CGMs Readings vs. Blood Glucose MetersWhether you're new to BUZUD CGMs or have used it before, it's important to review the product instructions carefully before use. Until you're confident in how BUZUD CGMs performs for you, continue using your blood glucose meter (BG meter) for treatment decisions.Your BG meter will give you one result. If you test again—whether with the same or a different meter—you may get a different value. Meanwhile, your BUZUD CGMs may show a third number. So, how should you interpret these differences?Understanding AccuracyLab-based glucose tests conducted by healthcare professionals are considered more accurate than any at-home device. In clinical studies, both blood glucose meters and BUZUD CGMs are evaluated by comparing their readings to lab results—not to each other.As a result, BUZUD CGMs readings may not match your meter exactly, but they should be close. You can compare them using what’s called the "20 Rule" (also known as the 20/20 rule) to determine how closely they align.What Is the 20 Rule?To apply the 20 Rule:Locate your meter reading in the center column of the chart;The left column (CGMs –) shows the lowest expected CGMs reading;The right column (CGMs +) shows the highest expected CGMs reading.For example, if your meter reading is 5.6 mmol/L (100 mg/dL), then any BUZUD CGMs reading between 4.4 and 6.7 mmol/L (80 to 120 mg/dL) would be considered an acceptable match.Best Practices for Fingerstick TestingTo ensure accurate meter readings:Store your test strips as directed and check expiration dates;Wash your hands with soap and water (not hand sanitizer), dry thoroughly, and then test.Situations That May Cause Temporary MismatchesFirst Day of Sensor Use: Readings from a newly inserted sensor may initially vary more from meter values. Accuracy typically improves within the first 24 hours.Rapid Glucose Changes: During rapid fluctuations, readings may differ because your meter reflects blood glucose levels, while CGMs measure glucose in interstitial fluid, which lags behind slightly. As glucose levels stabilize, readings will better align.Sensor Compression: Pressure on the sensor (e.g., lying on it while sleeping) can affect accuracy. Once the pressure is relieved, readings usually return to normal.When Should You Consider Calibration?Observe your CGMs readings over several hours. If they consistently read higher or lower than your meter and fall outside the 20 Rule, calibration may help.You may also calibrate if your CGMs readings don’t match how you feel, but your meter results do.Calibration GuidelinesBUZUD CGMs does not require routine calibration. Although calibration may bring readings closer to your meter values, it doesn’t always improve accuracy relative to lab standards.If you decide to calibrate:Enter the fingerstick value within 5 minutes of testing;Avoid calibration during a "Sensor self-check" status.How to Manually Use the 20 RuleBUZUD CGMs readings are considered accurate when:If the meter value is ≥ 4.4 mmol/L (80 mg/dL), the CGMs reading is within ±20%;If the meter value is < 4.4 mmol/L (80 mg/dL), the CGMs reading is within ±1.1 mmol/L (20 mg/dL).Important NoteThis information is intended for BUZUD CGMs users. Please consult your healthcare provider or local guidance for specific usage instructions.

Do BUZUD CGMs Support Calibration?

BUZUD Continuous Glucose Monitoring systems (CGMs) support manual calibration, but in most cases, calibration is not required for accurate performance. Our systems are designed to provide a seamless experience without the need for fingerstick calibration. Manual calibration is available as an optional feature.When Should You Consider Calibration?If your BUZUD CGM reading differs from a fingerstick blood glucose value by less than 20%, this is considered within the normal range.If the difference falls between 20% and 30%, manual calibration may improve accuracy.Note: Once you initiate manual calibration, the system will continuously adjust future readings based on your input.When Should Calibration Be Avoided?To ensure system stability and avoid potential malfunctions, do not calibrate in the following situations. Incorrect calibration can significantly reduce CGM accuracy and may even result in reading failures or device damage:When the Sensor Is Under PressureIf the sensor site is being compressed by clothing, body position, or external force, glucose values may be temporarily inaccurate. Calibrating under these conditions may cause the system to adjust based on incorrect data, leading to long-term inaccuracy or damage to internal algorithms.During Rapid Glucose ChangesAfter meals, during exercise, or following insulin injections, blood glucose levels may change rapidly. CGM readings have a physiological delay. Calibrating at these times can mislead the system into learning inaccurate trends, potentially causing persistent data distortion or sensor malfunction.When Up or Down Arrows Are DisplayedArrows indicate rapid glucose movement and an unstable state. Calibrating during these moments may result in system errors or device lock-up due to the sensor's inability to reconcile the trend.During Sensor Error MessagesIf the system shows "Sensor self-check" or "No sensor," do not calibrate. The sensor is not in a stable data collection state, and forcing a calibration may corrupt internal calibration parameters or require premature sensor replacement.Frequent or Unnecessary CalibrationBUZUD CGMs are designed with automated calibration mechanisms. Excessive manual input may disrupt internal algorithms, leading to erratic glucose curves, false alerts, or incorrect readings. Only calibrate when absolutely necessary, and preferably under guidance from a healthcare professional.Things to Know Before Calibrating:Wash and dry your hands with soap and water before testing. Avoid alcohol wipes or hand sanitizer, as they may interfere with accuracy.Enter the value within 5 minutes of fingerstick testing to ensure the reading reflects your current glucose level.Only use fingertip blood glucose values. Alternate sites (e.g., forearm) may yield inaccurate results.Acceptable calibration values range from 2.0 to 25.0 mmol/L. Values outside this range will not be accepted.If you receive a "Calibration Failed" message, repeat the fingerstick and try calibrating again.How to Calibrate Your BUZUD CGMUsing the BUZUD App (for models that support calibration):Open the BUZUD App and go to the CGM page.Tap the "Calibrate" button on the screen.Enter the blood glucose value from your fingertip test and follow the on-screen instructions to complete calibration.BUZUD CGMs are built to deliver a convenient and accurate glucose monitoring experience. Unless necessary, we recommend relying on automatic sensor readings without frequent manual adjustments. For any questions, please contact BUZUD support or consult a healthcare professional.

Can You Wear a Pacemaker or Implantable Cardioverter Defibrillator (ICD) with a BUZUD CGM?

The BUZUD CGM system has not been tested under defibrillation conditions or in patients using pacemakers or implantable cardioverter defibrillators (ICDs). Currently, there is no data to determine whether an electrical shock would affect CGM performance or reliability.If a patient receives a shock, it is recommended to closely observe the performance of the BUZUD CGM. If the CGM readings do not match symptoms or expectations, please perform a blood glucose (BG) check using a standard fingerstick method.Additionally, the pacemaker manufacturer should be consulted to confirm whether the device has been tested for resistance to Bluetooth signals in the 2.4 GHz frequency range, and to see if any specific recommendations or precautions are provided.⚠️ Always follow professional medical advice and the guidance of your device manufacturer when using electronic medical devices together.

How Accurate Is BUZUD CGM Compared to a Blood Glucose Meter?

Compared to traditional Self-Monitoring of Blood Glucose (SMBG), BUZUD CGM (Continuous Glucose Monitoring) systems provide much more comprehensive and continuous glucose data.For BUZUD CGM users, accuracy is evaluated based on comparisons with traditional fingerstick blood glucose values. However, it’s important to note that fingerstick testing can be affected by various factors such as timing, technique, and consistency during blood collection.In summary, while occasional differences between BUZUD CGM and meter readings may occur, BUZUD CGM offers real-time glucose trends and continuous monitoring, empowering users to manage their glucose more effectively and make informed decisions throughout the day.

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Sensor Usage Guide

Can I Travel with My BUZUD CGM?

Absolutely! You can take your BUZUD CGM with you wherever you go — including when traveling.The BUZUD App supports Airplane Mode, allowing you to view your real-time glucose data even without an internet connection. This ensures that you can monitor your glucose levels during flights or in areas with limited connectivity.Once your device reconnects to the internet, your CGM data will automatically sync to the cloud, keeping your records complete and up to date.Whether you're on the move or in the air, BUZUD CGM helps you monitor your glucose safely and conveniently.

Where Should I Insert My BUZUD CGM Sensor?

BUZUD CGM users aged 2 and above can choose from the following sensor insertion sites:Abdomen or back of the upper armWe recommend choosing areas with a good amount of subcutaneous fat and minimal muscle movement to ensure comfort and stable glucose monitoring.Helpful TipsAvoid areas near the navel, bony prominences, or areas with skin folds.Rotate insertion sites with each sensor change to minimize the risk of skin irritation.

CGM Insertion Tutorial Steps

1. Select Implantation SiteThe image shows choosing the back of the upper arm as the implantation site for the CGM device.2. Disinfect the Skin SurfaceUse an alcohol wipe or disinfectant cloth to clean the surface of the skin on the back of the upper arm to ensure it is sanitized.3. Prepare the Insertion DeviceRemove the CGM insertion device from its packaging, open it as shown, and inspect the device to ensure it's ready for use.4. Position the Insertion DevicePlace the insertion device firmly against the skin, ensuring the device is aligned with the selected implantation site.5. Initiate InsertionPress the button on top of the insertion device to activate it, inserting the sensor beneath the skin.6. Remove the Insertion DeviceAfter insertion, remove the insertion device, leaving the sensor properly installed on the skin.

Why does my BUZUD CGM show low at night when my fingerstick glucose is normal?

One possible reason is that the sensor may be under pressure while you're sleeping, which can cause the BUZUD CGM to report lower glucose readings. Once the pressure is relieved, the readings usually return to values that are closer to your fingerstick results.To avoid this issue, choose a sensor site that is less likely to be bumped, compressed, or laid on during sleep.If the readings do not return to normal after relieving the pressure, consider doing a calibration when your blood glucose trend is stable to help the system regain accuracy.

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Device Setup & Configuration

What Are the Best Practices to Minimize Signal Loss with BUZUD CGM?

To ensure you continue receiving accurate and uninterrupted CGM data on your compatible smart device, please review the following best practices:Bluetooth ConnectionsMinimize Bluetooth Pairings: Keep the number of active Bluetooth connections on your phone to a minimum.Unpair Old Devices: After you stop using a BUZUD transmitter, unpair it from your phone’s Bluetooth settings. Having multiple old transmitters paired may interfere with current connections.Running Apps in the BackgroundKeep the BUZUD App Running: Never close the BUZUD CGM app—it should always run in the background to ensure continuous data reception.Limit Background Apps: Avoid running multiple high-demand apps (like games or video streaming) simultaneously, as they consume processing power and may lead to signal interruptions.Battery and Power SettingsKeep Your Phone Charged: Ensure your device has sufficient battery.Avoid Low Power Mode: Low Power Mode may automatically disable Bluetooth or limit background app activity, which can disrupt communication with the BUZUD transmitter.By following these practices, you can reduce the chance of signal loss and maintain consistent glucose monitoring through your BUZUD CGM system.

Why Can't I Hear BUZUD CGM Alerts?

If you cannot hear BUZUD CGM alerts, check the following:Alerts Are Turned OnYou will not receive any glucose alerts unless you enable them. If you didn’t turn on alerts during setup, go to the BUZUD App > Home > CGM Card > Settings > Alerts and enable the alerts you need.Phone Sound SettingsBUZUD CGM alerts do not override your phone’s sound settings.If your phone is set to silent or vibrate mode, you will not hear high or low glucose alerts.To hear alerts, make sure your phone is in ring mode.Other Required SettingsEnsure notification permissions for the app are enabledBluetooth is turned onPhone volume is set to an audible level, and Do Not Disturb is turned offThe BUZUD App is running in the backgroundBy verifying all of the above, you can ensure BUZUD CGM alerts work properly.

Recommended iPhone Settings (for BUZUD CGM)

Certain phone settings may interfere with the normal operation of the BUZUD CGM app. To ensure the app works as expected, please check and adjust the following settings on your iPhone.1. Screen TimeDowntime and App Limits under Screen Time may temporarily restrict the BUZUD Follow app. If time limits are set, you may not be able to open the app or receive notifications.How to check:Open SettingsTap Screen TimeTurn off Downtime and App Limits, or add the BUZUD Follow app to the Always Allowed list2. Do Not DisturbDo Not Disturb silences all notifications. We do not recommend using this feature if you're relying on timely alerts from the BUZUD Follow app.How to turn it off:Open SettingsFind Do Not Disturb and turn it off3. Low Power ModeLow Power Mode may prevent the BUZUD Follow app from running in the background, and notifications could be delayed.How to turn it off:Open SettingsTap BatteryTurn off Low Power Mode4. NotificationsNotifications must be enabled for the BUZUD Follow app so you can receive alerts.How to enable:Open SettingsTap BUZUDTap NotificationsTurn on Allow Notifications5. Internet Connection (Wi-Fi or Cellular Data)An internet connection is required to view readings from your Sharer and receive alerts. If Wi-Fi is not available, enable Cellular Data. If both Wi-Fi and cellular are off, you won't see any readings or get alerts.If your phone or carrier doesn’t support Voice and Data simultaneously (VoLTE), your internet connection may drop during calls, which can delay notifications.How to check:Open SettingsTurn on Wi-Fi or Cellular DataIf supported, turn on VoLTE in Cellular Data OptionsiOS settings locations may vary by version. Refer to your device manual for exact instructions. To check your iOS version, go to Settings > General > About.

Are There Any iPhone/iOS Settings I Should or Shouldn't Use with My BUZUD CGM App?

Are There Any iPhone/iOS Settings I Should or Shouldn't Use with My BUZUD CGM App?To ensure you receive all BUZUD CGM sensor readings and alerts, please check the recommended iPhone settings below.Note: Setting locations may vary slightly depending on your iOS version and device model.Settings You Should Avoid (These May Disrupt App Functionality)1. Screen TimeEnabling "Downtime" or "App Limits" in Screen Time can restrict the BUZUD app. This may prevent you from opening the app, receiving alerts, or viewing sensor data.How to turn off Screen Time restrictions:Open the iPhone SettingsTap Screen TimeTurn off Downtime and App Limits, or add the BUZUD app to the Always Allowed list2. Do Not DisturbDo Not Disturb silences all alerts, including high and low glucose warnings from BUZUD CGM. For safety, avoid using this mode while using the BUZUD system.How to turn off Do Not Disturb:Open the iPhone SettingsTurn off Do Not Disturb3. Low Power ModeWhen enabled, Low Power Mode may prevent the BUZUD app from running in the background. This can cause delayed alerts or interrupted data.How to turn off Low Power Mode:Open the iPhone SettingsTap BatteryTurn off Low Power ModeRequired Permissions (Must Be Enabled for Proper Operation)1. NotificationsNotifications allow the BUZUD app to alert you of glucose changes. You must enable this to receive readings and alerts in real-time.How to enable Notifications:Open the iPhone SettingsScroll down and tap BUZUDTap NotificationsEnable Allow Notifications and select preferred alert styles (e.g., sounds, banners)2. BluetoothBUZUD CGM uses Bluetooth to communicate with the sensor. iOS requires you to manually grant Bluetooth access to the app.How to enable Bluetooth permission:Open the iPhone SettingsMake sure Bluetooth is turned onScroll down and tap BUZUDEnable the Bluetooth toggleIf you continue to experience issues such as signal loss, delayed alerts, or missing readings, please verify that all of the above settings are correctly configured, or contact BUZUD Customer Support for assistance.

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Data Sharing & Connections

How to Share Your Health Data with Your Doctor?

You can share your health data through the "My Health Connections" feature in the BUZUD app. This allows you to authorize either a family doctor or a medical institution to view your health information. Follow the steps below:1. Access "My Health Connections"Open the BUZUD app and go to your Profile from the homepage.Tap "My Health Connections" on your profile screen.2. Connect to a Family DoctorTap "Family Doctor".Enter the email address provided by your doctor.Check the box to agree to the Terms and Conditions.Tap "Connect" to complete the link.3. Connect to a Medical InstitutionFrom the "My Health Connections" screen, tap "Medical Institutions".Enter the 6-character access code provided by a doctor from the institution.Agree to the Terms and Conditions and tap "Search".Choose your preferred access level:Allow all doctors to view my health metrics, orGrant access to a specific doctor (enter the doctor’s email).Tap "Connect" to finish.Once connected, you can view and manage your linked doctors or institutions from the list.

How Can a Family Member View the Glucose Data from a BUZUD CGM User?

The BUZUD App allows CGM users to share their glucose data with family members. The process is initiated by the family member, and the CGM user only needs to approve the request. This setup enables simple and secure data sharing within the family.Step 1: The Family Member Sends a Binding RequestOpen the BUZUD App and go to Profile > My Family.Tap the "+" icon and select "Add a Registered User".Add the CGM user by one of the following methods:Manually enter the user code (found in the CGM user's My Profile page).Scan the QR code displayed in the CGM user's My Profile page.Once the user information is displayed, select the relationship (e.g., Father, Daughter), then tap "Send Request".Step 2: The CGM User Approves AccessThe CGM user will receive a notification in the BUZUD App.They can choose to:Approve or reject the request;If approved, they can also enable "Allow access to my data".Once approved, the family member can view the CGM user's real-time and historical glucose data in their own BUZUD App.NotesEach user can link with up to 5 family members.The CGM user can manage or revoke access at any time via the "My Family" section.This process is for family data sharing only and does not involve doctors or clinics.

App Operation Guide

How to Set Up and Use BUZUD CGM Glucose Alerts?

BUZUD CGM provides two types of alert functions: Routine Alerts and Critical Alerts. These settings help users monitor glucose levels and respond promptly when needed.Routine AlertsAccess Path:Open the BUZUD AppTap the CGM card on the home screenTap the Settings icon in the top-right cornerSelect Routine AlertsYou can customize the following options:Alert Frequency: For example, repeat every 30 minutesAlert Tone: Choose from a variety of sound stylesRing Duration: Set how long the alert tone lastsAvailable Alert Types:High Glucose Alert: Customizable threshold (e.g., 11.0 mmol/L)Low Glucose Alert: Customizable threshold (e.g., 4.0 mmol/L)Glucose Rising Fast AlertGlucose Falling Fast AlertAfter adjusting the settings, tap Save at the bottom to apply the changes.Critical AlertsAccess Path:Open the BUZUD AppTap the CGM card on the home screenTap the Settings icon in the top-right cornerSelect Critical AlertsCurrently supported critical alerts:Low Glucose Alert:Automatically triggered when glucose drops below 3.0 mmol/LThis threshold is preset and cannot be modifiedAdditional configurable settings:Alert Frequency: e.g., repeat every 5 minutesAlert ToneRing DurationNotesBUZUD CGM alerts do not override your phone’s silent or Do Not Disturb modes. Please make sure notifications and system volume are enabled to ensure you hear alerts.If the app is closed or removed from the background, alert functionality may be disrupted. It's recommended to keep the app running in the background.

Can I Travel with My BUZUD CGM?

Absolutely! You can take your BUZUD CGM with you wherever you go — including when traveling.The BUZUD App supports Airplane Mode, allowing you to view your real-time glucose data even without an internet connection. This ensures that you can monitor your glucose levels during flights or in areas with limited connectivity.Once your device reconnects to the internet, your CGM data will automatically sync to the cloud, keeping your records complete and up to date.Whether you're on the move or in the air, BUZUD CGM helps you monitor your glucose safely and conveniently.

How to Log Fasting Glucose in the BUZUD App

In the BUZUD App, you can manually log your fasting glucose level. Fasting glucose is typically measured after you have not eaten or drunk anything (except water) for at least 8 hours, usually right after waking up.Steps to log your fasting glucose:Open the BUZUD AppTap on the Blood Glucose card on the home screenSelect "Manual Record"Enter your glucose value and set the following information:Date (e.g., 12/09/2023)Time (e.g., 12:32)For Duration, choose "Fasting"Select the Identity (e.g., Myself)After confirming the details, tap "Save"Your fasting glucose record will be saved and can be viewed later in your glucose history.

I want to get a new phone. Will this affect my BUZUD CGM?

Switching to a new phone can affect your BUZUD CGM connection if not handled properly. While the BUZUD CGM system supports a variety of iOS and Android smartphones, it's important to follow the correct steps to ensure a smooth transition.Before switching phones, please follow these steps:Unpair the CGM device from your current phone– Open the BUZUD app on your old phone and properly unbind (disconnect) the CGM device through the app’s settings.Remove the device from your phone's Bluetooth list– Go to your phone’s Bluetooth settings and select "Forget" or "Remove" next to the CGM device name.Set up the CGM on your new phone– Download and install the BUZUD app on your new phone.– Log in to your account and follow the on-screen steps to pair your CGM device via Bluetooth.– Ensure Bluetooth is enabled and all necessary permissions are granted.⚠️ Important: If you don’t properly unpair the CGM from your old phone, it may not connect correctly to the new one, resulting in data issues or pairing failures.For a list of compatible smartphones, please refer to the BUZUD compatibility guide or contact BUZUD customer support.

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