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4 Way 12V Relay Module

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DC 12V 4-channel infrared control / IR relay module - AliExpress

HiLetgo 12V 4 Channel Relay Module with OPTO-Isolated Support High and Low Level Trigger : Industrial & Scientific

Electronics 12V relay with dual NC NO switches module with high or low trigger

Using SMD OPTOCOUPLER isolation

HiLetgo 12V 4 Channel Relay Module with OPTO-Isolated Support High and Low Level Trigger

HiLetgo 12V 4 Channel Relay Module with OPTO-Isolated Support High and Low Level Trigger : Industrial & Scientific

Using SMD OPTOCOUPLER isolation

HiLetgo 12V 4 Channel Relay Module with OPTO-Isolated Support High and Low Level Trigger

HiLetgo 12V 4 Channel Relay Module with OPTO-Isolated Support High and Low Level Trigger : Industrial & Scientific

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