> Is hardwired power required for new construction? Yes [0], although this is obviously country specific. [0] http://en.wikipedia.org/wiki/Smoke_detector#Inst

> Is hardwired power required for new construction? Yes [0], although this is obviously country specific. [0] http://en.wikipedia.org/wiki/Smoke_detector#Installation_and_placement http://en.wikipedia.org/wiki/Smoke_detector#Installation_and...