AC fluctuation

[blu-bee]

Hey all- after having read many threads on this and other forums I opted to return the craptastic Monster surge protector I initially purchased (it literally failed when I plugged it in for the first time, right out of the box, there's $90.00 well spent) and got a Panamax 4300 instead. I know we have our share of brown / blackouts here and I wanted to make sure we were protected.

Anyway, my question relates to AC fluctuation and I'm wondering what everyone's experience has been with these units. Since I installed the 4300 a couple of days ago, I've been watching the incoming voltage fluctuate anywhere between 116 ~ 123 VAC (the high side being late at night and the low being mid-day, I'm assuming this is due to power consumption on the local grid at those hours).

What's your experience been with power in your area? Is what I'm seeing normal?

BTW, we're in a relatively built up city, not a rural area.