Companies like Dranitz make boxes specifically for that purpose. Older
ones can be bought pretty cheaply. They will likely need new batteries.
-John
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Data logging devices are commonplace now days. Many high-end multimeters
have such a feature where you can plug the meter up to a power source and
record levels over time.
But I'm interested in recording out-of-bounds events such as spikes and
sags in mains supply.
This type of measurement is typically only found in power systems
analyzers which are quite "$pendy".
Anybody know of an event logger that is affordable?
THanks,
Dave
