Hey guys, I've been cleaning out the shed at home and stumbled across this awesome looking Gauge

After a bit of research I found that it was made by Furuhashi otherwise known as FD Elecman. They're still around and still list this gauge in their catalogue here(this particular unit has to be at least 15+ years old.

Does anyone know anything about them?

I'm going to see if I can get it working and use it in my Galant. It'd be cool to get an vintage Japanese gauge in the car.