The 61RGD Raynor remote was often used with the 540RGD & 545RGD radio receivers on the older Raynor garage door openers. They can be found on the models R130, R150, R170 and Flitestar openers to name a few. Once one 61RGD remote is programmed to the radio receiver the code from that programmed remote can be duplicated in additional remotes by matching the 9 programming dip switches found inside the remote.