Quoted from PinMonk:Bad news. I finally got a reply back from Tripp Lite tech support. They say that their LC1200 does not kick in until the power drops to 111V or less, when it brings it back to 120-121V. So it will not help your mild brownout problem. I've emailed them back to ask which product will work with your specific condition. Sorry for recommending the LC1200 - their printed spec summary didn't mention this threshold.
I used to plug in 3 pins to my tripp light to get my TZ to work properly. I have not tried the apc ups I have to see if they improve things.