Simple RF M4 Receiver - 315MHz Momentary Type : ID 1096 : $4.95 : Adafruit Industries, Unique & fun DIY electronics and kits
315 433 Mhz 315mhz 433mhz Rf Transmitter And Receiver Link Kit For Arduino Wireless Remote Control Module Voltage Module Board - Integrated Circuits - AliExpress
Amazon.com: HiLetgo 315Mhz RF Transmitter and Receiver Module link kit for Arduino/ARM/MCU/Raspberry pi : Electronics
Long Range 315MHz RF Wireless Transceiver Kit — PMD Way
RF Modules Tx & Rx 315 MHz
Amazon.com: HiLetgo 315Mhz RF Transmitter and Receiver Module link kit for Arduino/ARM/MCU/Raspberry pi : Electronics
Using Long Range 315MHz RF Wireless Transceivers with Arduino - Electronics-Lab.com