Relay Module Shield Board, Support Optocoupler, High and Low Level Trigger for Arduino, 1, 2, 6, 4, 8 Channel, 5V, 12V, 24V

Relay Module Shield Board, Support Optocoupler, High and Low Level Trigger for Arduino, 1, 2, 6, 4, 8 Channel, 5V, 12V, 24V
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sku: 1005006244373788
$1.60
Shipping from: China
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