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

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

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

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

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

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

5V 1 Channel Relay Module Optocoupler Isolation High Low Level Trigger 250V 10A

24V Relay Module with Optocoupler Isolation, 1 Channel High/Low Level Trigger...