Anyone know how to add wireless window sensors to an old wired system?

Rex said:
@Phillip
Great! I replaced 8 windows, but I’ve got 35 windows and 3 exterior doors total, so going with the high-capacity receiver sounds like a good idea. Thanks for the help!

One more thing—you’ll need an alpha keypad to program everything. If ADT installed a basic keypad that just shows numbers, you can’t program with that. But you can grab a 6160 alpha keypad and hook it up yourself.

I had a Vista 20P system and switched to a Qolsys IQ Panel 4 with a takeover module for my wired zones and 2GIG wireless sensors for the extra zones.