I have a MOTOROLA FREESCALE MPX5010G\P1.45 PSI  sensor going to a 
18F1320. Like the 5 volt in, and 0 - 5 (I think it's something slightly 
less) volt analog out. Easy to connect, 3 little filter caps and you are 
there. It's remotely (3 feet away), potted it's port to a 1/4" pipe 
thread brass nipple with a hex for the wrench in the middle. Then the 
entire (vent port open) thing potted in epoxy with milled fiber glass 
filler. If it get exposed to the weather, no big thing. Don't know how 
you would connect to the port, piece of plastic tubing and a clamp (I 
use other places 2 wraps .035" stainless aircraft safety wire, then 
twisted tight).

Check digikey for sensors that have pipe thread port already. And I 
thought Jameco had Motorola low pressure at low price, but didn't have 
the built in amplifier which would probably mean an OpAmp.

Dwayne Reid wrote:
> Good day to all.
>
> Got a new project to work on that requires a low cost air pressure 
> sensor.  Expected pressure is quite low: 0 to 2" water column.
>
> Anyone have any favorite sensors that work over that low pressure 
> range?  Single port sensor is fine - I'm measuring pressure relative 
> to atmosphere (gauge pressure).
>
> I've used Motorola's sensors in past but figure there has to be 
> others available.
>
> Expected volume is quite low - maybe 1K per year.
>
> Thanks for any suggestions.
>
> dwayne
>
>   
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