A string potentiometer is a great way to detect position and travel for a robot mechanism. Spring-tension inside the enclosure ensures the string retracts as your mechanism does. Note: The color of the enclosure will vary.
Included Hardware:
Note: With the retractable string provided, you will only be able to get about eight to nine turns out of the ten turn potentiometer. To get the full range, use the spring from the retractable string component and a 30" string instead.