No you can’t. AT&T Digital Life door and window sensors are not Z-wave. It’s a proprietary 433Mhz signal. Read this manual: https://www.manualslib.com/manual/1308502/AtAndt-Digital-Life.html
The only thing re-usable from the Digital Life is the Yale door lock if you have one. Even the Garage Door opener and Glass break sensors are on a proprietary signal.