This is a very lightly used speed sensor for Health Rider, Icon Health, Weslo, ProForm & Gold's Gym treadmill. As with all of our used Parts this item was pulled from a working treadmill. Please view all pictures and ask any questions before bidding or purchasing this item. For the most part these sensor / Reed switches are all the same with the exception of the length of the lead and the connector. So make sure to match your connector. Don't pay too much for your treadmill Parts! Why buy new when used will do?!?!