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Remote Control Relay Switch 12V 433Mhz Remote Transmitter and Receiver, DC 5V 6V 9V 12V Wireless Momentary Switch for Wireless Control - - Amazon.com
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Amazon.com: KEYESTUDIO 4 Channel Relay Shield 5V for Arduino Controller R3 ARM PIC AVR STM32 Raspberry Pi HIGH Level Trigger Relay Module Expansion Board : Electronics
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