The FreeStyle Libre reader and the FreeStyle Libre Sensor can be exposed to common electrostatic (ESD) and electromagnetic interference (EMI), including airport metal detectors. You can keep your FreeStyle Libre Sensor on while going through these. However, the FreeStyle Libre reader and the FreeStyle Libre Sensor should not be exposed to some airport full-body scanners (i.e. x-ray and millimeter radio-wave). To avoid removing your FreeStyle Libre Sensor, you should request another type of screening to be performed by the Security Officer.  If in doubt about the type of security scan you are passing through, notify the Security Officer prior to proceeding through the airport security checkpoint.