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8 channel relay module optically isolated breakout shield for Arduino 5V 918363247225 | eBay
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: SainSmart 2-Channel Relay Module : Industrial & Scientific
Amazon.com: Youngneer 12v Relay Board Relay Module 1 Channel Opto-Isolated High or Low Level Trigger : Industrial & Scientific
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16-Channel 12V Relay Module – SainSmart.com
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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 : UCTRONICS DC 12V Time Delay Relay Module for Smart Home, Tachograph, GPS, PLC Control, Industrial Control, Electronic Experiment, Arduino Robot : Electronics
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NOYITO 4-Channel Relay Module 5V 12V 24V High Low Level Trigger with Optocoupler Isolation Relay Load AC 250V 10A DC 30V 10A (DC 5V, Red): Amazon.com: Industrial & Scientific
Relay Shield for Arduino Uno, 4 relays (Assembled)|relay valve|relay moduleshield supplies - AliExpress
16-Channel 12V Relay Module – SainSmart.com
Amazon.com: Electronics-Salon 2 DPDT Signal Relay Module Board, DC 12V Version, for Arduino Raspberry-Pi 8051 PIC. : Electronics
Amazon.com: AITRIP 1PCS 8 Channel 5V Solid State Relay Module Board High Level Trigger Compatible with Arduino Uno Duemilanove MEGA2560 MEGA1280 ARM DSP PIC (1PCS) : Industrial & Scientific
Amazon.com: HiLetgo 12V 1 Channel Relay Module With Optocoupler Isolation Support High or Low Level Trigger : Industrial & Scientific
