Does the Freestyle Libre 2 need to be calibrated and can I print the measurement result?

On the manufacturer's website you can read the following information:
"And don't forget that the FreeStyle Libre 2 sensor is factory calibrated, which means you don't have to go through the cumbersome and often error-prone calibration process once you put it on. A big part of the FreeStyle Libre 2 system is the trend arrows, which indicate the direction and rate of glycemic changes."

The device can be integrated with an app on your phone.

If you have more specific questions, please call the manufacturer's hotline:

https://www.freestyle.abbott/pl-pl/pomoc/kontakt.html