Rademacher-remote control Rator 4385 - 433 MHz
Coding via a coding switch (looks likes piano keys).
Please mind that the identical housing was also used for the 40 MHz type.
Please check the frequency by opening the housing for a battery change. To the left of the coding switch you see the frequency printed on the silver quarz. Only if there is written 433.022 MHz we can provide an compatible remote control.