Your CGM sensor is designed for you to continue living your normal day-to-day life. You shouldn't have any issues with TSA and can go through airport security with your sensor on.
Some airport full-body scanners include X-ray or millimeter radio-wave, which can impact your CGM device. The effect of these scanners has not been evaluated, and the exposure may damage the CGM or cause inaccurate results. The CGM can be exposed to common electrostatic (ESD) and electromagnetic interference (EMI), including airport metal detectors.