I haven't used the IPI system personally however I can vouch for the
organization and the people who designed it.

http://www.imagepermanenceinstitute.org/shtml_sub/monitoring.asp

Check out their dewpoint calculator which also flags the conditions
for mould (and converts between celcius and fahrenheit for those of us
old enough to have trouble with that.)

Russ M.

On 10/15/08, Iona McCraith <[log in to unmask]> wrote:
> I am conducting a review and assessment of data loggers for temperature and
> relative humidity for the Archives Association of Ontario.  I would like to
> hear from anyone on these lists currently using a data logger  of any model,
> to monitor environmental conditions.
>
> What do you like and what do you not like about your logger?
>
> How easy is your logger to use?
>
> How easy is it to learn and work with the software program it has for
> downloading and generating reports on data gathered?
>
> Would you buy the same logger again?   If not, why?
>
> From what supplier did you obtain your logger?
>
> I would be happy to summarize responses I receive and post to both lists.
>
> Iona McCraith, Preservation Consultant, Archives Association of Ontario
>
>  Tel. (705) 277-1309   Fax: (705) 277-2091
>
>