From: Bill Owens [mailto:owens@nysernet.org]

I suppose if one had enough time and interest, and some Java skills, you could make something out of these:

http://www.ibutton.com/ibuttons/thermochron.html http://www.ibutton.com/TINI/applications/sertoeth/

</lurk> If you don't want to use the little iButton holder jobbie, you can use just the DS1820 range of sensors from Dallas Semiconductor. I bodged up something using one of these and a DS9097U RS-232 adaptor: http://www.neil.nu/temp.html I realise this is probably only of peripheral interest, as the original post requested a unit with SNMP capability, and the DS1820 doesn't provide anything as sophisticated. It was, however, completely free of charge as I got the bits as samples from Farnell in the UK. The software to drive the units is freely available, and it should be pretty trivial to get it to mail a pager or whatever if the temperature goes outside of limits. First post - please be gentle. -- Neil Ronketti MCI, Internet House, IP Design Engineer, CNE 332 Science Park, Cambridge CB4 0BZ Tel: +44 1223 382175 http://www.uk.uu.net/ VNET: 311 3175 http://www.mci.com/