Why do you need my address? Mandy November 21, 2018 09:17 Updated Follow For patients who qualify, Propeller sends out sensors directly to your home. We need your address to do that! Related articles How do I get Propeller? How long does it take to get a sensor? Why do you need my email address? How do I know if I have an account? What is my group name? Comments 0 comments Please sign in to leave a comment.