Argh! Where was this thread two weeks ago? I've been having trouble with our building turning off the water to the cooling towers, which shuts down our server room A/C with high pressure.

Since our A/C can't reset itself, either, I wound up getting one of these for about $200 (not $25, but it did take only 10 minutes to set up). It monitors temperature and a UPS, and sends a message to an internal mailbox, two pagers, and my cell phone if an alarm is triggered.

-jk