here is a wifi based oscilliscope for remote monitoring of electrical equipment. it works reasonably well it based on a esp and mcp3008 chip in conjunction with lxardoscope software to view the signal. it is reasonably accurate and supports upto 8 probes all you need to do is on the recieve computer create 4 virtual ports IE:
socat -u udp-recv:1234 PTY,link=/dev/ttyS18,group=tty,mode=770
then simply connect lxardoscope to those virtual ports to view the realtime osciliscope info from a remote device lxardoscope can be found here https://sourceforge.net/projects/lxardoscope/