2A-Solid-State-Relay-Optocoupler-Output-Master OUTPUT-Series-Finder-39-20-7-024-9024-2A-Solid-state-relay-with-optocoupler-output-The-silent-high-speed-switching-&-long-electrical-life-of-this-relay-makes-it-ideal-for-for-general-use-Finder-39-20-7-024-9024-Solid-State-Relay-Module-2A-SPST-NO-24VDC