Airbrush Compressor Pressure Gauge Tip

I bought a Paasche D3000r compressor/tank several years ago.  Its a nice compact unit, doesn't make too much noise, the compressor sits on top of a small tank, and the unit sits on the floor by my workbench.  The specs say it puts out 0 to 40 psi, auto shut-off is at 50 psi, and that's OK because I use 10 to 25 psi consistently in my painting.  HOWEVER: The gauge that came with the unit reads from 0 to 150 psi!  The increments are so small I can hardly see them, let alone get an accurate reading.  I went on ebay and for less than $10, bought a pressure gauge that reads 0 to 30 psi and replaced the one that came with the compressor. I can see the readings now without having to bend down for a closer look and can make mico-fine pressure adjustments.