1 2 4 Channel Relay Module 30A with optocoupler isolation Supports High and Low Triger Trigger DC 5V 12V 24V Relays Board

1 2 4 Channel Relay Module 30A with optocoupler isolation Supports High and Low Triger Trigger DC 5V 12V 24V Relays Board
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sku: 1005003540811589
$2.44
Shipping from: China
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