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5vdc (5 Volt DC) Relay - DPDT PCB 8-Pin Mount - Non-Latching Non-Polarized Electronic Low Signal High Sensitivity Relay Module for DIY Electronics and Arduino: Amazon.com: Industrial & Scientific
Amazon.com: Qunqi 4pcs 5V 2 Channel 5V Relay Module with Optocoupler Low Level Trigger Expansion Board Compatible with R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 Raspberry Pi : Electronics
Amazon.com: Acxico 1Pcs 3-32V DC 1-Channel SSR Solid State Relay High-Low Trigger 5A 5V 12V for Arduino : Industrial & Scientific
Amazon.com: uxcell 3pcs JD-2912 4 Pin DC 48V 40A Universal Car Vehicle Motor Fuse Relay Switch Power with Harness : Automotive
Amazon.com: HiLetgo 2pcs DC 12V 2 Channel Relay Module with Isolated Optocoupler High and Low Level H/L Level Trigger Module Triggered by DC 12V : Industrial & Scientific
Excelity 2 Channel DC 5V Relay Module for Arduino Raspberry Pi DSP AVR PIC ARM - - Amazon.com
Relay Module with Optocoupler 1 Channel High&Low Level Trigger Relay Module Board AC 250V/10A DC 30V/10A (5V): Amazon.com: Industrial & Scientific
Amazon.com: 5V Relay Module with Optocoupler Isolation Support High and Low Level Trigger Relay Red Board (8 Channel 5V Relay) : Industrial & Scientific
Amazon.com: Solid State Relay Module, 1 Channel DC 5V/12V 2A SSR Module Board with Fuse Low Level Trigger(5V) : Industrial & Scientific
Amazon.com: 4 pcs DC 5V 1 Channel Relay Module Board Shield High/Low Level Trigger with Optocoupler : Industrial & Scientific
Geekstory SV Safe Voltage Wifi Wireless Switch Smart Home Module DC 5-24V Phone APP Control Support Secondary Development for Amazon Alexa Google Nest - - Amazon.com
Amazon.com: DC 4V 5V 6V 7.4V 9V 12V Wireless Relay Remote Control One Key Switch Receiver + Transmitter for Computer,Auto Door,Window : Tools & Home Improvement
ESP8266 Relay Module, 4 Channel DC 5V Smart Switch Relay Module for Smart Home Automation System IOT: 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
Amazon.com: 16 Channel Relay Module Walfront Two Way Isolated Type Optocoupler 16 Channel Relay Module Interface Board High/Low Level Trigger DC 5/12/24V 3 Types Optional(DC12V) : Industrial & Scientific
Electronics-Salon DIN Rail Mount 2 SPDT 10Amp Power Relay Interface Module, DC 5V Version.: 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
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