During my testing I noticed this display using an advanced port scanner when I was attempting to possibly hack into the WM100.
This was initially confusing me as I had a few itead Sonoff modules which reported the same ESP_(different hex string).
I have hacked one Sonoff module with different firmware to allow local control if the internet is down.
It might be worth a hardware/software gurus time to crack one of these puppies open and playing with some different firmware.