Gauges: Defi - Toyota Caldina, 2.0L, 1996

I bought a sensor that shows a vacuum in the intake manifold.
completeness: alarm clock itself, sensor (already installed), wires.
now we need more and more ...
it really does not work without a unit, found the 2nd unit for 2500, but there is no money (
I think I will buy temperature (+ pressure) with a unit, they just often do not sell separately.