Hi shohadawy,
the information given is a bit vague. What kind of pressure do you want to measure?
If it's air pressure it also depends on the application.
Air pressure sensors are normally calibrated in Pascal and they range from 50 to 10,000Pa in air handling applications. (1mm of water column equals about 10Pa, standard atmospheric pressure is 1,013.2 hectoPascal or 29.29inchHg)
For guns pressure value units in MPa and GPa are required.
What would be of interest for the customer are the electrical parameters, e.g. sensor full scale range, supply voltage and output voltage or current.
Boncuk