Products > Test Equipment
Need Power Outage Recorder
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Psi:
Maybe you could find an old chart recorder for cheap on ebay.
One of those old things with a motor that's synced to mains freq and which draws lines on a large roll of paper.

Then you'd have a physicals record of it.  Just need to get it into the right mode where power on/off will show something on the paper.

Or, even an arduino connected to old dotmatrix tractor feed printer if you can find one. Or cheap china label printer with RS232 input and fitted with continuous paper roll.
In smallest font it can do print the current time every minute.
Get it to print 3 empty lines at startup, so its obvious when power was cut and the last time stamp tells you the time.
It would need some way to get/keep the time, perhaps GPS receiver with battery backup for hot starts.
2N3055:
If you want to argue with utility company, best bet would be something like Fluke VR1710 Voltage Quality Recorder..
It costs arm and a leg though.. Maybe look around for a used one...

But it has magical properties of Yellow..... No electrician will argue with you when you point at it and say "Fluke said it was...."
asis:
Hi,

Some things just lie under your feet.

For example, UPS APC with NMC (LAN).
The presence of the NMC is mandatory, it allows you to manage it via the WEB and view a rather deep event log.
And, it is possible to connect critical equipment directly to the UPS.

If the budget allows, you can buy any Fluke199 series on EBAY - it has an event recorder for several days.
In combination with FlukeView, it is very convenient to make detailed reports.
You can use alternative SW.
https://sigrok.org/wiki/Fluke_ScopeMeter_199B
jwet:
If you want to detect all the anomalies that the power line can dish out you can rent a Dranetz line disturbance analyzer.  I've done this in extreme cases for long term monitoring.  In the day, the output was a cash register tape but I'm sure they're all digital by now.  They could detects sags, skips, droops and a bunch of other power line maladies.
CatalinaWOW:
Dranetz and BMI were two makers of such equipment.  I have accumulated one of each in auction lot buys.  I haven't looked too deeply into them, though the BMI seems to work.  I'll turn loose of one or both for not much, plus shipping.  Or since I am relatively close in Southern Oregon you could just come and pick one up.  PM me if interested.
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