This remote control once came with several different frequencies. The frequency of this one is 433.92 MHz. Please open the remote control to verify the frequency written on the quartz inside. If you see 27.015, then the correct model is the ATTRONIK S406-4 27.015 MHz. If you see 40.685, then the correct model is the ALLTRONIK S406-4 40.685 MHz. If you are uncertain of the required frequency, please send us pictures of your remote control by using the online form. We will then determine the frequency for you.