5Pcs 433MHz RF Wireless Transmitter and Receiver Module Kit for Arduino/ARM/MCU, and for Raspberry pi : Amazon.in: Electronics
RFM69HCW Transceiver Radio Bonnet - 433MHz radio module for Raspberry Pi - Kamami on-line store
RF 433MHz Transmitter/Receiver Module With Arduino | Random Nerd Tutorials
SX1268 LoRa HAT for Raspberry Pi (433MHz) | The Pi Hut
Pi 3 Click Shield - MikroElektronika
$8.95 - RF Link Transmitter & Receiver Module Pair: 433MHz or 315MHz (for Arduino & Raspberry Pi) - Tinkersphere
Waveshare SX1268 LoRa HAT for Raspberry Pi 433MHz Frequency Band - Robotools
Raspberry Pi Pico with Pico LoRa 433MHz Expansion Board, Smart Data Transmission Board Module Transmission up to 5 KM Through Serial Port ( 433MHz LoRa Expansion) : Amazon.in: Computers & Accessories
LoRa Long Range Transceiver Shield 433 MHz - RobotShop