Pressure sensor

Using Arduino Project Guidance
1

Does anyone know of a breakout board or shield that can measure up to 500Kpa please.

I wish to build a logger for utility water supply pressure.

2

best to buy a pressure sensor and then connect that.
you may need to get an RTC shield with a prototype area and build a simple circuit to accept the inputs from a sensor.

I do not think you would want your electronics sitting next to the water pipe.

also, make sure your sensor can be used with water. some are only gasses, not liquids.

http://www.ebay.com/itm/172143825526

a bit wider range, but 5 votls. kinda narrow output of 0.5 to 4.5 volts, you would benifit by using a 12 bit ADC

3

I will be using an air break and desiccating coulomb.

the one linked to appears to be single port, i would prefer a dual port one.

I can buy one of these
http://www.coleparmer.com/Product/Digital_Pressure_Gauge_Vacuum_to_100_psi_with_1_8_NPT_M_Connections/EW-68950-25

But cannot find a scource for the required sensor

4

You want a dual port so you can measure against atmospheric pressure? That type of dual port?

5

Chagrin:
You want a dual port so you can measure against atmospheric pressure? That type of dual port?

Yes for this application.

Some times i may want to use a reference pressure similar to the adafruit shield when measuring airspeed.
Industrial sensors can be had but expensive.

The cheaper ones seem to be board mount but i cannot find one with the required range.