Low Pressure Transducers

[Fran and Bud]

Joel,
Has anyone answered your post about low pressure transducers?

I want to come up with a tool that will let me run tiny tubing to various
points on and in my truck, to locate and measure areas of hi and lo 
aerodynamic pressure.  Actual values are not too important - just pressure
at one location relative to another location.  

Would like to hear if you receive any leads.

Bud Todd
quest100 at gte.net