What happens if I lose or break my Propeller sensors? Mandy 11 December 2018 09:45 Updated Follow Not to worry. Simply call or email us so we can get you what you need. Related articles MDI sensor technique How do I know if my sensor has stopped working? How to attach your Sensor for MDI with White Button What is my group name? Diskus sensor technique Comments 0 comments Please sign in to leave a comment.