1 2 4 8 16 Channel DC 5V Relay Module with Optocoupler Low Level Trigger Expansion Board for arduino Raspberry Pi

1 2 4 8 16 Channel DC 5V Relay Module with Optocoupler Low Level Trigger Expansion Board for arduino Raspberry Pi
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sku: 32976703249
$1.60-6%
$1.50
Shipping from: China
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