1 2 4 8 Channel DC 5V Relay Module with Optocoupler 1 2 4 8 way Low Level Trigger Expansion Board for arduino Raspberry Pi

1 2 4 8 Channel DC 5V Relay Module with Optocoupler 1 2 4 8 way Low Level Trigger Expansion Board for arduino Raspberry Pi
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sku: 32947735155
$0.70
Shipping from: China
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