Although it may seem scary at first (trust me I was scared when I first saw the device), there is absolutely no pain when applying a CGM sensor. The applicator that comes with the device is spring loaded and applies the sensor quickly and painlessly. The sensor has a tiny wire filament (<0.4 mm) that is inserted just below the skin, but does not go past the fat layer. After a day of wearing the device, you forget that it is even there.

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