Why do you need my address? Mandy 18 February 2019 03:55 Updated Follow For patients who qualify, Propeller sends out 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 do I get Propeller? How do I know if I have an account? Comments 0 comments Please sign in to leave a comment.