One 1 Channel 12V Relay Module Board Shield with Optocoupler Support High and Low Level Trigger Power Supply Module for Arduino: Amazon.com: Industrial & Scientific
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![Arduino 4 Relays Shield [A000110]: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/710lO84lESL.jpg "Arduino 4 Relays Shield [A000110]: Amazon.com: Industrial & Scientific")
Arduino 4 Relays Shield [A000110]: Amazon.com: Industrial & Scientific
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HiLetgo 24V 8 Channel Relay Module with OPTO-Isolated High and Low Level Trigger 8 Ways Relay Switch Module for Arduino: Amazon.com: Industrial & Scientific
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5V Four 4 Channel Relay Module With optocoupler For PIC AVR DSP ARM Arduino 8051 - - Amazon.com
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Amazon.com: DAOKI 5 PCS 5v Relay Module for Arduino ARM PIC AVR MCU 5V Indicator Light LED 1 Channel Relay Module Works with Official Arduino Boards : Industrial & Scientific
Excelity 2 Channel DC 5V Relay Module for Arduino Raspberry Pi DSP AVR PIC ARM - - Amazon.com
Amazon.com: HiLetgo 12V 8 Channel Relay Module with OPTO-Isolated High and Low Level Trigger 8 Ways Relay Switch Module for Arduino : Industrial & Scientific
Amazon.com: JBtek 8 Channel DC 5V Relay Module for Arduino Raspberry Pi DSP AVR PIC ARM : Electronics
Amazon.com: JBtek 8 Channel DC 5V Relay Module for Arduino Raspberry Pi DSP AVR PIC ARM : Electronics
