Freescale makes gauge, differential, and absolute pressure sensors in 
various pressure ranges, and several output voltage ranges including 0 
-5 vdc which interfaces nicely to a PIC and others with 3 little filter 
caps. Check Freescale's site for stocking distributors, lead time can be 
long for non-stock. Have bought recently from Digikey, Mouser, and 
Newark. Their catalogs have good lists, but check stock first.

Victor Fraenckel wrote:
> I would like to continuously monitor the differential pressure between 
> the interior and exterior of a balloon. I expect the pressure to run 
> between 0 and 10 inches of water. I will be using a micro controller to 
> drive the application.
>
> What sensor would be optimum for this?
>
> Any enlightenment will be appreciated.
>
> Vic
>   
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