Amazon.com: SainSmart 8-Channel Relay Module : Automotive
KEYREN Relay Interface Board, 16-channel 12V Relay Module Interface Control Board with Optocoupler Protection: Amazon.com: Industrial & Scientific
Amazon.com: D-FLIFE 12V 16-Channel Relay Interface Board Module Optocoupler LED LM2576 Power for Arduino DIY Kit PiC ARM AVR (12V 16-Channel) : Electronics
Amazon.com: ACEIRMC 12V 16-Channel Relay Interface Board Module Optocoupler LED LM2576 Power for Arduino DIY Kit PiC ARM AVR : Electronics
Proteus RC - WiFi Cloud Interface with email/Text alerts for Relay Contacts
Amazon.com: AOICRIE 12V 16-Channel Relay Interface Board Module Optocoupler LED LM2576 Power for Arduino DIY Kit PiC ARM AVR : Electronics
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): Amazon.com: Industrial & Scientific
Amazon.com: YWBL-WH MRC-25D61Z05 5V Ultra-thin Interface Relay,PLC Electromagnetic Interface Relay Module Control Board, Relay : Industrial & Scientific
GAEYAELE 4 Channel 1 SPDT DIN Rail Mount 12V DC/AC Interface Relay Module (FY-T734-12VACDC): Amazon.com: Industrial & Scientific
Amazon.com: SainSmart 4-Channel Relay Module : Automotive
Amazon.com: Good BNTai 8 Channel Interface Relay Module 12VACDC 24VACDC 110VAC 230VAC DIN Rail Panel Mount Automation PLC Board (8Channel ACDC24V) : Industrial & Scientific
HiLetgo 2pcs DC 12V 2 Channel Relay Module with Isolated Optocoupler High and Low Level H/L Level Trigger Module Triggered by DC 12V
Amazon.com: HiLetgo 12V 1 Channel Relay Module With Optocoupler Isolation Support High or Low Level Trigger : Industrial & Scientific
Slim Interface Relay, 5Pin, Spdt, 6A, 24Vdc: Amazon.com: Industrial & Scientific
Amazon.com: 8 Channel I2C Interface Bus Solid State Relay Module for Arduino Raspberry PI and All Mic, AC Voltage Frequency Range 50…60Hz, AC Controlling Voltage Range 100…240VAC Long Life Quite Relay :
Electronics-Salon DIN Rail Mount 4 DPDT Signal Relay Interface Module, DC 5V Version.: Amazon.com: Industrial & Scientific
Amazon.com: AEDIKO 8 Channel Relay Module DC 5V Relay Board with OPTO-Isolated Support High or Low Level Trigger : Automotive
Amazon.com: Ethernet Controller Network Web Server + 16-Channel Relay Module with RJ45 Interface for Controlling Lights, and Refrigerator : Electronics
Multifunction Time Relay Module, 8-36V 4-Channel Multifunction Time Delay Relay Interface Board Module Optocoupler LED: Amazon.com: Industrial & Scientific
Amazon.com: Finder General Purpose Relay, 38 Series, Interface, Dpdt, 24 V, 8 A Rohs Compliant: Yes - 38.52.0.024.0060 : Industrial & Scientific
DIN Rail Mount 16 SPDT 10Amp Power Relay Interface Module (DC 5V): Amazon.com: Industrial & Scientific
Relay Network Ethernet Relay Controller Module Control Board LAN WAN Network Web Server with RJ 45 Interface + 8 Channel Relay Module for Smart Home Remote Control
Electronics-Salon AC/DC 12V Slim DIN Rail Mount 10Amp SPDT Power Relay Interface Module, G2R-1 12V.: Amazon.com: Industrial & Scientific
ZYAMY 5-Pack DC 5V 1 Channel Relay Module Interface Board Shield Low Level Trigger for SCM Household Appliance Control: Amazon.com: Industrial & Scientific
DC 8-36V 8-Channel Multifunction Time Delay Relay Interface Board Module Optocoupler LED Relay Board for Various Power Control Applications: Amazon.com: Industrial & Scientific
