The series 925 Linear Cable Reel Sensor can be used  in any linear application up to 1200 inches. The system consists of a heavy-duty spring motor assembly attached to a precision machined cable  drum. As the cable is pulled off of the precision drum, the drum rotates  a shaft connected to it. The shaft is precisely geared such that the  full number of revolutions of the drum is equal to the appropriate  number of revolutions required by the chosen sensor. The Series 925  Linear Cable Reel Sensor can be used with our Series 1746 Resolver Input  Card and a Series 2120 PLC Transducer Module.The 925 Cable Reel  also provides accurate position feedback for linear motion up to 100  feet. Mounting for either resolver, encoder, cam switch or rotary  potentiometer.