What's the operating and storage altitude of my biosensors? The operating and storage altitude is -1,250 ft to 10,000 ft. Related articles What Bluetooth radio frequency does my biosensor use? What battery is in my biosensor? Why does my new biosensor give higher or lower glucose readings than my previous biosensor? I see the following message when using the Lingo app: Biosensor Ended Can I re-use a biosensor?