CGM Sensors for Continuous Glucose Monitoring

Continuous Glucose Monitoring (CGM) sensors are wearable devices that continuously monitor glucose levels in individuals with diabetes, providing real-time data for better management.

CGM Sensors FAQ

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What is a CGM sensor?

These sensors are called disposable sensors. Another type of CGM sensor—called an implantable sensor—may be placed inside your body. CGM sensors estimate the glucose level in the fluid between your cells, which is very similar to the glucose level in your blood.

What is a continuous glucose monitoring (CGM) sensor?

A continuous glucose monitoring (CGM) sensor is a less intrusive way of tracking your blood sugar levels dynamically. Instead of taking finger prick readings throughout the day, a CGM allows you to track your glucose all the time, even while sleeping. How does a CGM sensor work?

Do CGM monitors have alarms?

Some types of CGM have optional alarms to alert you if your blood glucose levels go too low or too high. The Abbott FreeStyle Libre 2 also has an alarm. You generally need to replace a sensor every 7 to 14 days, depending on the type of monitor you have. Interstitial fluid glucose readings are a few minutes behind your blood glucose levels.

Is CGM a blood glucose meter?

People may assume CGM is continuous glucose monitoring but it is not blood glucose monitoring, as the sensors used are placed into the body but not into the bloodstream. With a blood glucose meter, you use blood to do the test. With the sensors, they actually measure the glucose in your interstitial fluid, not your blood.

What are the benefits of a CGM blood glucose meter?

One of the main benefits of CGM is that it allows you to get a wider picture of your glucose levels. When you use a blood glucose meter, you only see what your glucose levels are at the time that you take the measurement. With CGM, you can see your current level, where it’s heading, and review the data over the last few hours or days.