LED Sign w/Ethernet or Wireless IP Feed?

Not being compatible could be an issue. I want this sign to be a “public service” to the traffic passing by my location. Being able to alert the public to NWS alerts is a main
consideration for installing the sign. Not all led signs have the flexibility to customize output from other software. I don’t want to expend funds on a sign that can not
accept data from other software. I was hoping that this particular sign might work.

What are your suggestions?