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Amazon.com: HiLetgo 5V 8 Channel Relay Module with OPTO-Isolated Support High and Low Level Trigger : Industrial & Scientific
DaFuRui 12v Relay Module，8Pack 1 Channel Relay Module 12v Relay Board with Optocoupler Support High/Low Level Trigger for Arduino Relay: Amazon.com: Industrial & Scientific
Amazon.com: SainSmart 16-Channel 12V Relay Module Board for Arduino DSP AVR PIC ARM : Electronics
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Amazon.com: 4 pcs DC 5V 1 Channel Relay Module Board Shield High/Low Level Trigger with Optocoupler : Industrial & Scientific
8 Channel High Low Level Trigger Relay Module with Optocoupler for Smart Control(5V): Amazon.com: Industrial & Scientific
Amazon.com: CANADUINO 4 Relay Module 10A / 250V Opto-Isolated Inputs 3-24V for Arduino etc. : Electronics
Amazon.com: SainSmart 4-Channel Relay Module : Automotive
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SainSmart 5V 2A 4 Channel Solid State Relay Module High Level Trigger Black for Arduino Uno Duemilanove MEGA2560 MEGA1280 ARM DSP PIC: Amazon.com: Industrial & Scientific
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Amazon.com: SainSmart 8-Channel Relay Module : Automotive
Excelity 2 Channel DC 5V Relay Module for Arduino Raspberry Pi DSP AVR PIC ARM - - Amazon.com
AEDIKO 4pcs Relay Module DC 12V Relay Board 1 Channel with Optocoupler Isolation Support High or Low Level: Amazon.com: Industrial & Scientific
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
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Amazon.com: JBtek 4 Channel DC 5V Relay Module for Arduino Raspberry Pi DSP AVR PIC ARM : Electronics
Amazon.com: Relay Module 8 Channel Relay Module Board, Relay Module with Optocoupler High & Low Trigger Module, 5V/12V/24V Channel Relay Module (24V) : Industrial & Scientific
ELEGOO Relay Module with Optocoupler for Arduino UNO R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 Raspberry Pi – ELEGOO Official
Amazon.com: SunFounder Relay Module Compatible with Arduino and Raspberry Pi 5V DC Trigger by HIGHLO (HIGH Trigger) : Electronics
Amazon.com: HiLetgo 12V 1 Channel Relay Module With Optocoupler Isolation Support High or Low Level Trigger : Industrial & Scientific
