3 Channel 12V/3.3V High Voltage Relay Board With Isolated Optocoupler 49X42x20mm 5071382262824

3 Channel 12V/3.3V High Voltage Relay Board With Isolated Optocoupler 49X42x20mm 5071382262824

3 Channel Relay Module High Voltage Relay Board with Isolated Optocoupler High Low Level Trigger12V 3.3V-12V Trigger Item Type:...

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