Connect 21 CGM Glucose Sensor
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Connect 21 CGM is a continuous glucose monitoring sensor made by Teljane Medical, offering up to 21 days of wear, automatic readings every 5 minutes and an approximately 15-minute warm-up. Readings, trends and alerts are sent via Bluetooth to the Connect 21 CGM app. Factory calibrated, IP58 water-resistant and supplied with its applicator.
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Continuous glucose monitoring for up to 21 days
Connect 21 CGM is a continuous interstitial glucose monitoring sensor manufactured by Teljane Medical Technology (Suzhou) Co., Ltd. It uses the Teljane Instara-1 / TX-series platform and is marketed in Europe under the Connect 21 CGM name.
A single application provides automatic readings every 5 minutes, day and night, for up to 21 days. The sensor is factory calibrated and does not require routine manual calibration.
Readings, trends and alerts on your phone
The sensor sends data via Bluetooth to the Connect 21 CGM app. You can view current glucose and trend direction, set high and low alerts, log meals, exercise and medication, and generate reports to discuss with your healthcare professional.
- 288 readings per day: one value every 5 minutes;
- fast warm-up: approximately 15 minutes after pairing;
- useful reports: trends, Time in Range and exportable AGP reports;
- remote sharing: data and reports can be shared with family, caregivers or healthcare professionals.
Clinical accuracy in a discreet format
The manufacturer reports an 8.2% MARD. The sensor is only 4.5 mm thick, uses hypoallergenic adhesive and is designed for comfortable, discreet wear on the back of the upper arm.
Its IP58 rating supports normal daily use within the limits stated in the instructions for use. Clean the application site with alcohol and allow it to dry completely before applying the sensor.
How to apply Connect 21 CGM
Assemble the sensor in the applicator, position it on the prepared area of the arm and press the release button firmly. After registering in the app and pairing the device, readings begin following the warm-up period.
Box contents
- 1 Connect 21 CGM sensor;
- 1 dedicated applicator;
- product documentation.
Alcohol wipes are not included.
Important information
CGM measures glucose in interstitial fluid, while a blood glucose meter measures capillary blood glucose. A physiological lag of 5–15 minutes may occur, especially during rapid rises or falls. If a reading does not match your symptoms, check with a blood glucose meter and seek professional medical advice.
Remove the device before CT, X-ray or MRI examinations. Use it only according to the manufacturer's instructions and do not change insulin, medication, diet or treatment solely on the basis of this page.
Connect 21 CGM app and official resources
For app installation and information about the manufacturer's platform, use the official resources:
- Connect 21 CGM on Google Play
- Connect 21 CGM on the App Store
- Instara-1 platform on the Teljane Medical website
Check app compatibility and usage instructions before installation and use them together with the documentation included in the package.
Frequently Asked Questions
How long can the Connect 21 CGM sensor be worn?
One sensor can be worn for up to 21 days. At the end of the wear period, data collection stops and the sensor must be replaced.
How often are glucose readings updated?
The sensor sends a reading every 5 minutes, providing up to 288 readings per day.
Does it require finger-stick calibration?
The sensor is factory calibrated and does not require routine manual calibration. If a reading does not match your symptoms, check with a blood glucose meter and follow medical advice.
How long is the warm-up period?
After pairing in the app, the initialization period is approximately 15 minutes.
Is the sensor water-resistant?
The sensor is rated IP58 and can be worn during normal daily activities, subject to the limits and guidance in the instructions for use.
Where should the sensor be applied?
The recommended site is the back of the upper arm, on a relatively flat area with sufficient subcutaneous tissue and no scars, irritation or dense hair.
Which app works with Connect 21 CGM?
Readings are displayed in the Connect 21 CGM app for compatible iOS and Android phones. It provides trends, alerts, event logging and shareable reports.
How accurate is Connect 21 CGM?
The manufacturer reports an 8.2% MARD. CGM measures interstitial glucose, so readings may lag behind capillary blood glucose, particularly during rapid changes.
Are Connect 21 and Instara-1 the same product?
Connect 21 CGM is the European commercial name used for the Teljane Instara-1 / TX-series platform. The Connect 21 app is published by Teljane Medical for compatible TX-series devices.
What is included in the box?
The box contains one Connect 21 CGM sensor and its dedicated applicator. Alcohol wipes are not included.
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