Test equipment that has a PC inside often uses the Embeded version of Windows. This is not to be confused with Windows CE, Windows IoT or Windows RT. Basically the embedded version is a more "no bullshit" version of the normal desktop version of windows where they let the OEM strip away anything they don't need. The licensing also works differently as you can't buy this version of windows on your own (Likely involves a contract and buying it in bulk). So anything that is compatible with the regular Win 10 versions should be compatible with this (As long as the OEM has not stripped out some essential module).
They had the embedded version since Windows XP, but i would imagine in Windows 10 it brings more drastic changes due to all the extra crap in it. Pretty sure things like Cortana, forceful updates, forceful reboots, ads in the start menu, nagging to log you into microsofts services etc... are all removed in the embeded version. It might actually be the best version of Win 10 to run on your PC.
Id still rather have Windows 7, but hey maybe they did a good job of cleaning the nonsense out of Win 10. Microsoft is already starting to wind down support for 7 so i guess they had to go to 10 to avoid having to transition to the new OS later down the scopes lifecycle.