i despise that thing i have, and here no choice, power cio. showed up yanked the old one, just following orders from the top, ma'am...the next month i almost fainted at the bill. and that was the month my power usage plummeted, as most of the family was on a month long vacay. only lights used was in my room. and there was a recent misplace of a decimal point the bills of some neighbors. people started getting power bills for thousands instead of hundreds...a big stink was raised, the power board sent meter readers out to re-read the smart things.......then all the dang things replaced.....