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12V/24V 1 2 4 8 Ways Channels Opto isolator Isolated Optocoupler Trigger Switch Relay Module AC 240V DC 30V for Arduino

12V/24V 1 2 4 8 Ways Channels Opto isolator Isolated Optocoupler Trigger Switch Relay Module AC 240V DC 30V for Arduino
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sku: 1005004280603901
$2.74
Shipping from: China
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