differential sensor pressure for water flow rate measurement

Hi all,

i would measure water flow rate in a venturi pipe, through differential pressure measure. I need choose pressure transducer, (1.5 bar max), low cost , and with linear analog output, interfacing in arduino. What choose ?

Which country are you from, and what shops did you try?

dx.com is often cheap but do not have every possible sensor, and cheap often implies not so accurate sensors...

What is your requirement wrt precision and accuracy and repeatability?

Can you share with us how you derive the flow from the difference in pressure?

NB the Arduino has roughly 10 bit ADC with 1-2 bit noise.