TNE or unknown 433Mhz RF transmitter receiver module Arduino wireless radio kit: Amazon.de
SMAKN 433Mhz Rf Transmitter and Receiver Link Kit for Arduino/Arm/McU : Electronics - Amazon.com
QIACHIP 3 Sets of 433mhz RF Transmitter and Receiver Module Wireless 4 Channel Output Link Kit Set with 1527 Learning Code for Remote Control - - Amazon.com
Amazon.com: 433mhz Wireless 4 Channel RF Receiver 1527 Learning Code Decoder Module for Remote Control : Electronics
12V Relay Remote Switch Wireless RF Remote Control Switch 4 Channel Relay Module 433Mhz Transmitter Receiver Kit Universal Remote Controller for Lights Ceiling Fan Garage Door Opener Gate Car & More - -