Now for some good news....there's a new radio receiver and remotes available. The #75424 Marantec Plug-in Radio Receiver Set. The set includes a new 315MHz radio receiver, one (1) M3-2312 2-button remote, bell wire to attach the receiver to the operator and installation instructions. The radio receiver is easy to install and can save you hundreds of dollars because you won't have to replace the entire electric operator and you'll be able to get many more years out of your Marantec opener.
You can add additional Marantec M3-2312 2-button remotes as needed or you can also add the M3-3313 Micro Remote which is small enough to fit in your pocket or purse. And if you like to access your garage with a keyless entry you can add the M13-631 Wireless Keyless Entry.
Another great thing about this new radio equipment is that it can be attached to any make or model of garage door operator.