433.92mhz Marantec Digital 211/212/214/221/222/224/382/384/232 Fixed Code Garage Door Command Door Control Remote Transmitter - Remote Control - AliExpress
How to change a Marantec Remote battery - Garage door opener remote not working - YouTube
Mini dálkový ovladač Marantec Digital 313, 3 kanálový vysílač , 868,3 MHz | MontEgo.cz