I work in the railroad Signaling and Crossing Equipment Industry. My Co. is the Number one Supplier to the Railroads in N. America. We do not make such a device, (yet) I’m told a few smaller companies are trying to market such devices but site trials are far from being completed.
Vital equipment such as this needs a lot of testing due to the high liability if it fails.
Yes I can easily imagine. Is there some certifying agency for RR equipment analogous to the FDA for medical equipment?