KNACRO 4-Channel 12V USB Control Switch Relay Module No Driver Required Plug and Play PC Smart Controller

KNACRO 4-Channel 12V USB Control Switch Relay Module No Driver Required Plug and Play PC Smart Controller

• The module uses HID technology, without any driver, plug and play. Support WIN7, XP 32-bit, 64-bit system, easy to use simple. (Can provide development library, if you need, please contact us).
• Onboard square USB interface, stable connection; use of high-performance USB control chip; use dedicated relay driver chip ULN2803, relay work more stable;
• Power outlet and terminal, two access power mode convenient and flexible. After connecting the power, even if the computer shut down or USB from the computer pull out, the relay can also maintain the set state.
• PCB size: 71.6mm * 65.3mm, fixed hole size: 3mm, fixed hole center moment: 67.4mm * 61.3mm.
• Note: Due to the characteristics of the USB protocol, this module is not suitable for use where electromagnetic interference is large! If you want to use, please do electromagnetic shielding measures.
• APP Download: https://1drv.ms/u/s!AgIwyXAQlpRrctFR9FvUtM71FAE?e=nN0bmy

APP Download: <BR> https://www.amazon.com/clouddrive/share/8Qn3vw8915JaZiv5bYzuBJWg1Ic4kibOcus1BhTJcrS<BR><BR> Input voltage: DC 12 V;<br> Input current: greater than 300mA;<br> Wiring method: NC / COM / NO;<br> Relay parameters:<br> Maximum control AC 250V, 10A AC load and maximum DC30V 10A DC load;<br> <br> Module Application:<br> Home intelligent switch control;<br> Hotel intelligent switch;<br> Hotel intelligent electrical control;<br> Intelligent greenhouse;<br> Shopping malls intelligent switch;<br> Company plant intelligent switch;<br> Internet cafes regular management;<br> Karaoke timing control;<br> Networking;<br> Industrial equipment;<br> Test equipment power control;<br> Street lamp management;<br> Intelligent management;<br> Centralized power management;<br> <br> Package Inluded:<br> 1*4-Channel 12V USB Control Switch Relay Module