I've watched this thread, including the debate (!) about the need or even the
wisdom of monitoring fuel pressure. I'm on record for favoring both the near
aircraft approach of monitoring everything important. The definition of
important is left to the beholder, but I find good quantitative and qualitative data
to be useful for both diagnostics and performance tuning. I use
electroluminescent 270 degree sweep digital gauges from Speedhut.com because of their
precision, custom gauge faces and the ability to set trigger warning lights that
respond to max and min settings on each of the gauges. The combo of pleasantly
moving gauges softly moving in the night together with 1200 watts of classical
music can make the trek across west Texas bearable.

That said, the original poster had correctly been searching for an electronic
fuel pressure gauge with sender that could be mounted close to the source.
For many a year, I have mounted a sender rated for gasoline at the test port of
the fuel injection rail on my 1.8L I-4 Digifant conversion. Autometer makes
the most complete line of such units. See Autometer.com.

Frank Grunthaner