Best way to add sensors to lots of windows?

[desertblade (Ben W)]

You have to daisy chain them together. Inside the contact sensor there are screws you can attach too.

Here is another discussion with a video, that may better explain it.

Window sensors for top and bottom half of windows

@swindmiller, I did something similar as what’s in this video except using ST, not a Vera controller, but this gets the idea across. I’m using the same Ademco sensors as the video, and an Ecolink sensor: