Did you see the movie "Twister"?  (Huge bunch o' sensors
floating in the air).

For accuracy though, you would need the sensors to be as
small and aerodynamic as possible, so as not to disturb
the airflow in the room.



>   "The tricky thing will be positioning the
>    sensor to measure the airflow changes at
>    the locations you need."
>
> How about a half-dozen units all wirelessly
> linked - one could develop a GOOD idea of
> the drafts in a room that way! (Hmmm ... this
> is possibly patentable ... hmmm ...)
>
> RF Jim

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