1 Channel DC 5V 12V 24V Relay High Level Driver Module Optocoupler Relay Module

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1 channel 12V Relay Module, Opto-coupler isolated, for Arduino and MCU projects.

1 Channel DC 5V 12V 24V Relay High Level Driver Module Optocoupler Relay Module

1-Channel DC 3V 5V 12V 24V Optocoupler Isolated Driver Relay Module High Level

1Channel High Level Driver Relay Module Optocoupler Isolated Drive Control Board

5V/12V/24V 1Channel Relay Module Board Low Level Trigger w/Optocoupler Isolation

DC 5/12/24V 8 Channel High/Low Level Trigger Relay Module Optocoupler Isolation