Amazon.com: DollaTek 5Pcs 433MHz RF Wireless Transmitter and Receiver Module Kit for Arduino Raspberry Pi : Electronics
Wireless Remote Switch DC 12V 24V 36V 48V New 2 Channel Multi-Function Remote Control Switch, 433Mhz Transmitter with Receiver Use for Electric Doors, Cars, Lights & More(Momentary Mode): Amazon.com: Tools & Home
Oiyagai 3pcs 315MHz RF Wireless Transmitter and Receiver Module Kit for Arduino/Arm/McU/Raspberry pi: Amazon.com: Industrial & Scientific
QIACHIP Wireless 433Mhz RF Module Receiver and Transmitter Remote Control Built-in Learning Code 1527 Decoding 4 Channel Output (Transmitter and Receiver kit) - - Amazon.com
Amazon.com: Gowoops SX1278 LoRa Radio Wireless 433Mhz UART Serial Module LoRaWAN Transmitter Receiver + 433Mhz 3dBi SMA Antenna, Compatible with Arduino STM32 51 Single Chip Microcomputer : Electronics
Amazon.com: kwmobile 433 MHz Transmitter and Receiver Module Kit for Remote Control Raspberry Pi Arduino Pack of 3 : Electronics
QIACHIP Wireless 433Mhz RF Module Receiver and Transmitter Remote Control Built-in Learning Code 1527 Decoding 4 Channel Output (Transmitter and Receiver kit) - - Amazon.com