Any have pointers to a gadget that will monitor and log power outages
> or glitches on 110V or 220V residential electrical service?
> Looking for a home or retail level gadget that will work either
> connected to a dedicated computer, or preferably free-standing with
> periodic read-out to a computer, logging time and duration of both
> longer outages and short glitches (anything long enough to cause
> digital clocks and appliance displays to reset).
Your best bet is likely to be a UPS. Some of them use their PC link to write a log of when power went out and returned. Mine sends a message to the system terminal (Linux), but that could probably be redirected to a log file. Actually, I think it keeps logs normally, but I have never bothered with them.