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Amazon.com: 4 pcs DC 5V 1 Channel Relay Module Board Shield High/Low Level Trigger with Optocoupler : Industrial & Scientific
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Amazon.com: SunFounder 2 Channel DC 5V Relay Module with Optocoupler Low Level Trigger Expansion Board Compatible with Arduino R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 Raspberry Pi : Electronics
Amazon.com: uxcell 5 Pieces DC 5V Coil SPDT 6-Pin PCB Type Mini Power Relays Yellow : Automotive
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Amazon.com: HiLetgo 12V 4 Channel Relay Module with OPTO-Isolated Support High and Low Level Trigger : Industrial & Scientific
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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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YWBL-WH Relay Module One Way 30A Optocoupler Isolation Relay Module High Power Relay High/Low Level Trigger YYG-2(5VDC): Amazon.com: Industrial & Scientific
Amazon.com: ARCELI 5PCS KY-019 5V One Channel Relay Module Board Shield for PIC AVR DSP ARM for Relay : Electronics
HiLetgo 3pcs 5V D1 Mini Relay Shield 5V Relay Module 1 Channel 5V Relay Shield: Amazon.com: Industrial & Scientific
Xiuxin 2pcs 5V 8 Channel Relay Module Board for Arduino PIC AVR DSP ARM: Amazon.com: Industrial & Scientific
![Amazon.com: [2-Pack] DC 5V Relay Module 2-Channel Relay Switch with Optocoupler Isolation High/Low Level Trigger : Industrial & Scientific](https://m.media-amazon.com/images/I/41krbNEkkLL._AC_SY350_.jpg "Amazon.com: [2-Pack] DC 5V Relay Module 2-Channel Relay Switch with Optocoupler Isolation High/Low Level Trigger : Industrial & Scientific")
Amazon.com: [2-Pack] DC 5V Relay Module 2-Channel Relay Switch with Optocoupler Isolation High/Low Level Trigger : Industrial & Scientific
Saim JQC-3F SPST Power Relay PCB Type DC 5V Coil 5 Pins Mini Power Coil Relay 10 Pcs: Amazon.com: Industrial & Scientific
Amazon.com: Onyehn 2pcs 8 Channel DC 5V Relay Module with Optocoupler for arduino UNO R3 MEGA 2560 1280 PIC AVR DSP ARM STM32 Raspberry Pi : Electronics
10pcs 5V Mini Relay Shield 5V Relay Module 1 Channel 5V Relay Shield for WeMos D1 Mini also Compatible with Arduino - - Amazon.com
Amazon.com: Timer Control Relay, 3V 3.7V 4.5v 5v 6v 7.4V Adjustable Cycle Time Delay Switch Module for Automotive and Lamp Accessory Applications : Industrial & Scientific
