Digital Relay Module (Arduino Compatible), IO Digital Interface, Applied to the Control of Electromagnetic Valve/Lamp/DIY Smart Home/Arduino Interactive Project.
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<b>[Product Information]</b><br>
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<li>More refined appearance, more convenient to use.</li>
<li>Adapted to operating voltage 3.3V and 5V power supply.</li>
<li>A small port on the edge of the board has a capital D, indicating it is a digital sensor.</li>
<li>Small board with high quality fittings, able to withstand thousands of mating cycles, ensure contact with a solid, good.</li>
<li>Immersion Gold process, not only to ensure the performance of the module, and with a golden sheen.</li>
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