Room temperature sensors (was: What IS reasonable disk drive temperature?)

[Kenneth Porter]

--On Sunday, June 12, 2005 10:02 AM -0400 Matthew Miller 
<mattdm at mattdm.org> wrote:

> Even my
> poorly-conditioned office is, as you can see below, only 82 degrees F --
> about 27C.
>
> --
> Matthew Miller           mattdm at mattdm.org        <http://www.mattdm.org/>
> Boston University Linux      ------>                <http://linux.bu.edu/>
> Current office temperature: 82 degrees Fahrenheit.

I'm guessing the temp in your sig is auto-generated. What app and hardware 
do you use for that? I was thinking of setting up some temp monitors around 
the house and office for data collection and was wondering what's available.