AISANRAY 2 way Ethernet Relay Network Switch Delay TCPUDP Module Controller
There are 4 options for you to choose, please click the picture to take a order. (Please make sure box is selected, prices vary widely, so as not to cause unnecessary misunderstanding.):Description:SR 201 Series Iot module:1. Industrial grade STC MCU ENC28J60 stable firmware supports 6 network connections in TCP server mode, also provides UDP control realizes cloud remote function2. instruction is very simple, string send 11 to open first relay,