Quote Originally Posted by PrevostNewbie View Post
I think wired is a good choice, those sensors most likely sip power from the tiniest of thimbles.
They make a replacement back that accepts USB power and converts it to 3 volts. I will add some small DC to DC converters to power these.

My biggest problem is fishing the wires through the walls, which I dread doing as once the hole is drilled, it's drilled...