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: RPi PoE Relay Board Module for Raspberry Pi 3B+ 4B : Electronics
Amazon.com: Raspberry Pi Expansion Board 8-Channel Relays Loads up to 5A 250V AC or 5A 30V DC for Pi A+/B+/2B/3B/3B+/4B SPDT-NO,NC Contact Form 6mA per Channel Supports Jetson Nano : Electronics
ZYAMY 2 Channel 12V Red Board Relay Module with Optocoupler Isolation Supports High and Low Level Trigger for SCM Household Appliance Control: Amazon.com: Industrial & Scientific
Amazon.com: WMYCONGCONG 5 PCS 12V 2 Channel Relay Module Optocoupler Expansion Board (12V 2 Channel) : Electronics
Amazon.com: ACEIRMC 10pcs 12v Relay Board for Raspberry Arduino Relay Module 1 Channel Opto-Isolated High or Low Level Trigger (12V) : Industrial & Scientific
OLatus 12V Single Channel Relay Board Module For Arduino | Raspberry Pi | Avr | Pic | 8051 : Amazon.in: Industrial & Scientific
Amazon.com: 30A 4 Channel Relay Module Expansion Board with Optocoupler for Arduino Raspberry Pi DSP AVR PIC ARM (5VDC) : Electronics
Amazon.com: 30A 4 Channel Relay Module Expansion Board for Raspberry Pi DSP AVR PIC ARM (12VDC) : Electronics
Amazon.com: waveshare Raspberry Pi Power Relay Board Expansion Board Module Three Channel(3-ch) for Raspberry Pi A+/B+/2B/3B/3B+/4B Loads up to 250VAC/5A,30VDC/5A : Electronics
Amazon.com: AITRIP 2Pcs 4 Channel DC 12V Relay Module with Optocoupler Isolation Relay Control Board Compatible with Arduino UNO R3 Raspberry Pi DSP AVR PIC ARM : Industrial & Scientific
Amazon.com: Industrial 6-ch Relay Module for Raspberry Pi Zero, RS485/CAN, Isolated Protections : Electronics
Amazon.com: Raspberry Pi Relay
Amazon.com: DollaTek 5Pcs NE555 12V DC Adjustable 0-10 Second Timer Delay Relay Switch Module Shield for Arduino Raspberry Pi : Electronics
Amazon.com: LGDehome 2pcs DC 5V 4 Channel Relay Module with Optocoupler for Arduino UNO R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 Raspberry Pi : Electronics
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Amazon.com: CQRobot Ocean: Relay Module, 5V to 30V Input/Output, DC2.1 Interface, Compatible with Raspberry Pi/Micro:bit/Arduino/Other Control Boards. for Robot, Gardening, Smart Home, RC Car and Other Projects. : Electronics
ANMBEST 10PCS 5V Relay Module with Optocoupler High or Low Level Trigger Expansion Board for Raspberry Pi Arduino: Amazon.com: Industrial & Scientific
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SainSmart USB 4 Channel DC 12V Relay Module Automation for Arduino Raspberry Pi DSP AVR PIC ARM: Usb Relay Board: Amazon.com: Industrial & Scientific
Amazon.com: HiLetgo 2pcs 5V One Channel Relay Module Relay Switch with OPTO Isolation High Low Level Trigger : Industrial & Scientific
XCSOURCE 16 Channel 12V Relay Module Shield Expansion Board with Optocoupler for Arduino Raspberry Pi DSP AVR PIC ARM TE285: Amazon.co.uk: Electronics & Photo
