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Smart RF Relay Switch eMylo Wireless Remote Control Switch DC 12V RF Receiver 433Mhz Relay Module Home Automation with Two Transmitters One 1-Channel 1Pack: Amazon.com: Tools & Home Improvement
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Oiyagai 3pcs 315MHz RF Wireless Transmitter and Receiver Module Kit for Arduino/Arm/McU/Raspberry pi: Amazon.com: Industrial & Scientific
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