This should do the trick
http://www.omega.com/pptst/HX85.html
I have not used this particular model, that is why I asked if it was barometric.

Any how. The way I use other parts from this company is to set up a voltage divider to scale to 0 - 10 VDC down to 0 - 5 VDC. Then use a chip with an ADC port. At least 3 pins will be needed.