1 The relay module has 6 working modes, namely open, close, jog, self-lock, interlock, delay. 2 In addition to serial port hyper terminal input, you can also use development and debugging tool to input. 3 The maximum delay is 255 seconds, and it can support up to 64 devices to be used in parallel. 4 The relay module is 8-channel design, with a wide range of applications and less interference. 5 Relay module is often used in industrial automation, smart agriculture, building automation, smart homes, etc.
What's in the box
1 x Relay Module