ROX-QCD4 - Remote Control/Transmitter copy fix code, double frequency for oscillator frequencies and 433.92MHz -
DieseRC 433 MHz RF Wireless Remote Control Switch Wireless 2 Channels AC 220 V 230 V 240 V Wireless Relay Receiver with 2 Transmitters for Garage Door Roller Shutters Light and Pumps : Amazon.de: DIY & Tools