What’s the operating and storage altitude of my biosensors? The operating and storage altitude is -381 metres (-1,250 ft) to 3,048 metres (10,000 ft). Related articles Can I use my biosensor while flying? Why does my new biosensor give higher or lower glucose readings than my previous biosensor? Is Lingo the same as Freestyle Libre? How do I recycle or dispose of my biosensor? What is Lingo?