Shop two-channel dc 5v relay module for arduino

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2 Channel DC 5V Relay Module With Optocoupler Low Level Trigger Expansion Board For Arduino R3 MEGA
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Shop two-channel dc 5v relay module for arduino

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$2.11
2 Channel DC 5V Relay Module With Optocoupler Low Level Trigger Expansion Board For Arduino R3 MEGA
Aliexpress
$2.11
2 Channel DC 5V Relay Module With Optocoupler Low Level Trigger Expansion Board For Arduino R3 MEGA
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