Overview This is Sainsmart 8 channels WIFI network IO controller model. It works with the 8 channel relay to help you realize controlling your other devices remotely.This Model helps you to avoid complicated wiring processes and save you much time to accomplish your goal. You can feel free to enjoy the remote controlling of your other devices with the sainsmart 8 channel relay by using our codes and APP. We will supply you all around technical support after your purchase.