For use with model C indoor rowers only.
For use with model C, D and E indoor rowers only.
For use with model C and D indoor rowers only.
For use with PM3 and PM4 monitors.
For use with model C and D indoor rowers only.
For use with model C, D and E indoor rowers only.
For use with model B indoor rowers only.
For use with model A, B, C, D, & E indoor rowers.