Why do you need my address? Mandy July 31, 2017 19:00 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 do I know if I have an account? What is my group name? How many sensors do I need? How long does it take to get a sensor? Comments 0 comments Please sign in to leave a comment.