Are biosensors waterproof or water resistant? The Lingo biosensor is water resistant and will withstand being worn in water up to depths of 3 feet for up to 30 minutes. You can bathe, shower, and swim while wearing your biosensor. Related articles Can I wear my biosensor in a sauna or hot tub? How long can I wear a biosensor? Can I still use a biosensor after it expires? Why does my new biosensor give higher or lower glucose readings than my previous biosensor? Can I use my biosensor while flying?