Name: Demonsen Relay Board,USB Relay Module,DC5V 4 Channel Relay Module USB Computer Control Relay Switch High Performance Chip LCUS-4
Brand: Demonsen
SKU: 42ALM6RHGIC0
Availability: OutOfStock

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Demonsen Relay Board,USB Relay Module,DC5V 4 Channel Relay Module USB Computer Control Relay Switch High Performance Chip LCUS-4

<ul><li>4‑channel USB relay module, with DC5V working voltage, which has stable performance.</li><li>Adopt high‑performance control chip, which can meet various work needs.</li><li>Send serial port commands on the computer to control on and off of the relay.</li></ul>

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<div ><p><b>Feature:</b></p>1. 4‑channel USB relay module, with DC5V working voltage, which has stable performance.<br>2. Long service life, it can be connected continuously for 100,000 times, high reliability.<br>3. Adopt high‑performance control chip, which can meet various work needs.<br>4. Send serial port commands on the computer to control on and off of the relay.<br>5. Made of premium quality PCB, good thermal conductivity and electrical insulation properties.<p><br></p><p><b>Specification:</b></p><p class="wang-edit-text"><p>Item Type: USB Relay Module<br>Material: PCB<br>Working Voltage: DC 5V <br>Purpose: Use the serial port debugging software on the computer to send serial commands to control the on and off of the relay.</p><style>.wang-edit-text{font-family:'Arial' !important;}.wang-edit-text table {border-top: 1px solid #000;border-left: 1px solid #000;}.wang-edit-text table td,.wang-edit-text table th {border-bottom: 1px solid #000;border-right: 1px solid #000;padding: 3px 5px;}.wang-edit-text table th {text-align: center;}</style></p><p><br></p><p><b>Package List:</b></p>1 x USB Relay Module</div><p style="color: red"><b>How to use:</b></p><br><div>Wiring:</div><div>COM1:&nbsp;Common</div><div>NC1:&nbsp;Normally&nbsp;closed,&nbsp;the&nbsp;relay&nbsp;is&nbsp;short‑connected&nbsp;with&nbsp;COM1&nbsp;before&nbsp;it&nbsp;is&nbsp;closed,&nbsp;and&nbsp;it&nbsp;is&nbsp;suspended&nbsp;after&nbsp;it&nbsp;is&nbsp;closed;</div><div>NO1:&nbsp;Normally&nbsp;open&nbsp;terminal,&nbsp;the&nbsp;relay&nbsp;is&nbsp;suspended&nbsp;before&nbsp;the&nbsp;pull‑in,&nbsp;and&nbsp;short‑circuited&nbsp;with&nbsp;COM1&nbsp;after&nbsp;the&nbsp;pull‑in.</div><div>COM2:&nbsp;Common</div><div>NC2:&nbsp;Normally&nbsp;closed&nbsp;terminal,&nbsp;the&nbsp;relay&nbsp;is&nbsp;short‑connected&nbsp;with&nbsp;COM2&nbsp;before&nbsp;it&nbsp;is&nbsp;closed,&nbsp;and&nbsp;it&nbsp;is&nbsp;suspended&nbsp;after&nbsp;it&nbsp;is&nbsp;closed;</div><div>NO2:&nbsp;Normally&nbsp;open&nbsp;end,&nbsp;the&nbsp;relay&nbsp;is&nbsp;suspended&nbsp;before&nbsp;being&nbsp;closed,&nbsp;and&nbsp;shorted&nbsp;to&nbsp;COM2&nbsp;after&nbsp;being&nbsp;closed.</div><div>COM2:&nbsp;Common</div><div>NC2:&nbsp;Normally&nbsp;closed&nbsp;terminal,&nbsp;short‑circuit&nbsp;with&nbsp;COM2&nbsp;before&nbsp;the&nbsp;relay&nbsp;is&nbsp;closed,&nbsp;and&nbsp;suspended&nbsp;after&nbsp;being&nbsp;closed</div><div>NO2:&nbsp;Normally&nbsp;open&nbsp;end,&nbsp;the&nbsp;relay&nbsp;is&nbsp;suspended&nbsp;before&nbsp;the&nbsp;pull‑in,&nbsp;and&nbsp;short‑circuited&nbsp;with&nbsp;COM2&nbsp;after&nbsp;the&nbsp;pull‑in</div>

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