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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
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RF Mixer Module, AD831 RF Mixer Module RF WideBand Amplifier DC Baseband Frequency Conversion and Quadrature Amplitude Demodulation 0.1‑500MHz Mixer Module: Amazon.com: Industrial & Scientific
HiLetgo 315Mhz RF Transmitter and Receiver Module link kit for Arduino/ARM/MCU/Raspberry pi : Electronics - Amazon.com
Amazon.com: Remote Control Switch, 12V Single Channel Relay Module RF Wireless Switch Receiver Equipped with Portable Remote Control Transmitter : Tools & Home Improvement
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