How do I determine what garage door opener transmitter to buy?
First, note who is the manufacturer. Garage door transmitters are not interchangeable between different manufacturers and the brand garage door opener on the ceiling does not necessarily mean that your radio controls are of the same make. Then, check the model number and the frequency number of one of your existing transmitters. You should be able to find these numbers printed on the transmitter case. If they are worn off, open the transmitter case or battery case and see if there is a group of small numbered set switches inside. If so, it is a digital garage door transmitter and there is a good chance a compatible transmitter of the same make is still available. Unlike before, for the last 15 years Genie, as well as other make garage door openers, have been using the same frequency radio controls. Each manufacturer usually has there own frequency. Transmitters earlier than this are no longer made by any of the manufacturers listed on this site. If you do not have any transmitters for
