Why do you need my address? Mandy August 03, 2018 19:28 Updated Follow For patients who qualify, Propeller ships our sensors directly to your home. We need your address to do that! Related articles Why do you need my email address? How long does it take to get a sensor? What is my group name? How many sensors do I need? How do I know if I have an account? Comments 0 comments Please sign in to leave a comment.