The output on one type model is 0-10 volts, so if you bought the 0-600 psi. it would give you 5 volts at 300 psi.
I wouldn't buy that one however.
I'd buy the current output model, 0-300psi., and it outputs a current signal of 4 - 20 ma over the full range of pressures.
You take a 250 ohm resistor, as accurate as you can buy, 1% will work fine, .1% accuracy would work even better, and place it accross the output terminals of the device. Temperature stable ones are used for this type of work. Easy to find a Newark Electronics or Moser etc.
As the current passes through the stable resistor you get a fixed output voltage, which would be 5 volts at full output or 300psi.
You simply make a scale from there, 0 psi. should be 4ma. through the 250 ohm resistor or 1 volt. Have to check that under use to be sure however.
Easy to do with the 4-20ma output version.
Some data loggers are set up to read this output from transducers.
It's an industry standard type output.
You may need to stabilize the input voltage to it, but the device may do that internally as well, not sure on that, but getting a fixed 9 volt supply voltage for it from a car battery signal is very easy for about $3 tops.
I think I have a box of 250 ohm good resistors, if you buy one, I can send ya a couple.
