How to check voltage fluctuation at home

1. How can I monitor voltage fluctuations at home?
2. What is normal voltage fluctuation in house?

How can I monitor voltage fluctuations at home?

A power quality analyzer or energy logger can measure voltage fluctuation, help you avoid nuisance tripping and find what equipment is causing flicker issues by using the event capture feature, which provides waveforms and additional data.

What is normal voltage fluctuation in house?

The Bottom Line

Ideally, the average voltage over a 24-hour period should be 120.0 VAC and vary between, say, 117 and 123 volts, or better between 118 and 122 volts, depending on supply and load conditions.