What happens if I lose or break my Propeller sensors? Mandy December 06, 2018 08:44 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 stopped working? What is my group name? Diskus Sensor Technique Does the Propeller sensor mean you can monitor where I am? Comments 0 comments Please sign in to leave a comment.