Amazon.com: HiLetgo 4 Channel 24V Relay Module with OPTO-Isolated Support High and Low Level Trigger for PLC Automation Equipment Control : Industrial & Scientific
Amazon Relay
Amazon.com: HiLetgo 12V 1 Channel Relay Module With Optocoupler Isolation Support High or Low Level Trigger : Industrial & Scientific
ANMBEST Relay Module with Optocoupler High/Low Level Trigger for Arduino (3, 3V Relay 1 Channel): Amazon.com: Industrial & Scientific
Amazon.com: Ethernet RJ45 TCP/IP Relay Remote Control Controller Network Web Server 8 Channels Relay Module Board 250V/AC 10A with Case(White) : Electronics
Amazon.com: 4 pcs DC 5V 1 Channel Relay Module Board Shield High/Low Level Trigger with Optocoupler : 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
HiLetgo 2pcs 12V Single Bistable Self-Locking Relay Module Push to Start and Stop: Amazon.com: Industrial & Scientific
Amazon.com: Ethernet RJ45 TCP/IP Relay Remote Control Controller Network Web Server 8 Channels Relay Module Board 250V/AC 10A with Case(White) : Electronics
Amazon.com: 1 Pack 5-Pin 12V Bosch Style Waterproof Relay Kit [Harness Socket] [12 AWG Hot Wires] [SPDT] [30/40 Amp] 12 Volt Automotive Marine Relays for Boats Auto Fan Cars : Automotive
MHCOZY 4 Channel Smart WiFi RF Bluetooth Wireless Dry Contact Relay Switch Module,Phone app Remote Control,Work with Alexa Google Home (Tuya 4CH 5V AC/DC7-32V): Amazon.com: Tools & Home Improvement
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: Ethernet RJ45 TCP/IP Relay Remote Control Controller Network Web Server 8 Channels Relay Module Board 250V/AC 10A with Case(White) : Electronics
Amazon.com: 12-Slot Fuse Relay Box 6 Relays 6 ATC/ATO Fuses Holder Block with 41pcs Metallic Pins for Automotive and Marine Engine Bay Jeep Car Boat : Automotive
Amazon.com: XYGStudy Raspberry Pi Expansion Board Power Relay Module for Raspberry Pi 4 3 2 Model B B+ A+ : Electronics
NOYITO 4-Channel 12V Computer USB Control Switch Relay Module Drive-Free Relay Module Plug and Play Suitable for PC Smart Controller: Amazon.com: Industrial & Scientific
Amazon.com: Ethernet RJ45 TCP/IP Relay Remote Control Controller Network Web Server 8 Channels Relay Module Board 250V/AC 10A with Case(White) : Electronics
Amazon Relay
ELECTRONICS-SALON DPDT Signal Relay Module, 12Vdc, RY12W-K Relay. Has Assembled.: Amazon.com: Industrial & Scientific
LAN Ethernet Controller Module, TCP/UDP Controller Module with 2-Way Relay Board Delay Switch DC(5-24V) for Replacement of Web Server Electronic Kit Circuit Board: Amazon.com: Industrial & Scientific
Amazon.com: JBtek 8 Channel DC 5V Relay Module for Arduino Raspberry Pi DSP AVR PIC ARM : Electronics