Sure Controls Red Lion Footage/length measurement counter kit.  Includes single shafted ZFH quadrature encoder w/10' cable, hinged encoder mounting bracket, 12" circumference urethane wheel, PAX 1/8 DIN, 120VAC counter/rate meter as well as a wiring diagram and parameter setup sheet for footage count and feet/minute applications.  Can be configured for counting, length measurement, machine speed, etc.  3000RPM max wheel speed.  Other encoder options and wheel surface types available.  Unsure if this will work for your application?  Contact us to discuss your specific needs! Sure Controls part# 1033049