I need a combined oil pressure and oil temp gauge, and like these two from Burton,

Racetech: Mocal:

but it looks like they need a capiliary feed. I already have an oil pressure gauge but that's capiliary fed, and never fitted it because I didn't fancy having an accident with hot oil spraying me in the face from the A Pillar.

Is there such a thing as a combined pressure/temp gauge that's electrically operated, and what will I need to fit it?