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24VAC, 8-Pin Side Flange Enclosed Power Relay; Electrical Connection: 1/4" Tab Terminal: Amazon.com: Industrial & Scientific
Amazon.com: HiLetgo 4 Channel 24V Relay Module with OPTO-Isolated Support High and Low Level Trigger for PLC Automation Equipment Control : Industrial & Scientific
Calvas YET402PC-V2.0 Universal 2 Channel 12-24V AC/DC Wireless Rolling Code Receiver for Gate Automation Door - - Amazon.com
Amazon.com: HiLetgo 2pcs DC 24V 2 Channel Relay Module with Isolated Optocoupler High and Low Level H/L Level Trigger Module Triggered by DC 24V : Industrial & Scientific