One 1 Channel 5V / 12V / 9V / 24V Relay Module Board Shield With Optocoupler Support High and Low Level Trigger for Arduino

One 1 Channel 5V / 12V / 9V / 24V Relay Module Board Shield With Optocoupler Support High and Low Level Trigger for Arduino
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sku: 1005003733089176
$0.49
Shipping from: China
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