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
5v Relay Module 1 Channel Relay Board for Raspberry Pi with Opto-Isolated High or Low Level Trigger 5v 1 Channel Relay Switch for Arduino: Amazon.com: Industrial & Scientific
1 Channel Relay Module Interface Board Shield for Arduino 5V Low Level Trigger One PIC AVR DSP ARM MCU DC AC 220V: Amazon.com: Industrial & Scientific
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
Jeanoko 1 Channel Relay Board Module Reliable Relay Switch for Arduino: Amazon.com: Industrial & Scientific
5V 2 CH 2CH Channel Relay Module Expansion Board for Arduino Low Level Optocoupler Triggered 2 Way Relay Switch: Amazon.com: Industrial & Scientific
Amazon.com: Valefod DC 12V Relay Module 1-Channel Relay Switch with Optocoupler Isolation High/Low Level Trigger, Pack of 10 : Industrial & Scientific
Teyleten Robot DC 1 Channel Optocoupler 3V/3.3V Relay High Level Driver Module Isolated Drive Control Board 3V/3.3V Relay Module for Arduino (Pack of 5): Amazon.com: Industrial & Scientific
Hilitand 8 Channel Relay Module, 12V 8 CH DB9 RS 232 Relay Module Remote Control Switch Smart Home: Amazon.com: Tools & Home Improvement
ENLOZURE 12Pcs 12V One Channel Relay Module OPTO Isolation High Low Level Trigger Relay Switch for Raspberry Pi Arduino: Amazon.com: Industrial & Scientific
1 2 4 8 Channel 5V 12V Relay Module Board Shield with Optocoupler Support High and Low Level Trigger for Arduino-12V 1 Channel: Amazon.com: Industrial & Scientific
PC Control Switch Expansion Board,USB Control Switch Relay Module Free Practical High Drive for Computer: Amazon.com: Industrial & Scientific
Relay Module 8 Channel, 12v Relay Optocoupler, DC 5V/12V/24V Relay Module Board Switch with OPTO Isolation High Low Level Trigger(24V): Amazon.com: Industrial & Scientific
Amazon.com: 4 pcs DC 5V 1 Channel Relay Module Board Shield High/Low Level Trigger with Optocoupler : Industrial & Scientific
Amazon.com: 5V Relay Module with Isolated Optocoupler High or Low Level Trigger Relay Board 2 Channel 5V Relay Module Relay Switch for Raspberry Pi Arduino Relay DIY 5PCS (5V-2Channel) : Industrial &
Amazon.com: SainSmart 16-Channel 12V Relay Module Board for Arduino DSP AVR PIC ARM : Electronics
Amazon.com: AITRIP 8 Pack 3V 1 Channel Relay Power Switch Module with Optocoupler Opto Isolation High Level Trigger for IOT ESP8266 Development Board : Industrial & Scientific
5V LSR Light Sensitive Sensor Relay Light Control Switch Photoresistor Optical Relay Module for Arduino DIY: 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/71NNkhe7-5L._AC_UF894,1000_QL80_.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
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
ANMBEST Relay Module with Optocoupler High/Low Level Trigger for Arduino (3, 3V Relay 1 Channel): Amazon.com: Industrial & Scientific
