DC 5V 1-Channel Relay interface board.
Indication LED for output, can be directly output signal chip microcomputer control
DC 5V 1 Channel Humidity Sensor Switch Relay Module
Product Description
DC 5V 1-Channel Relay interface board.
Indication LED for output, can be directly output signal chip microcomputer control
DC 5V 1-Channel Relay interface board.
Indication LED for output, can be directly output signal chip microcomputer control
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