Does Anyone Have a Digital Life Smoke Detector to Sell

Hi All,

I recently got AT&T Digital Life when I purchased a new home. I am looking to add smoke detectors to my system but AT&T no longer sells them.  I was informed that f I purchase them from a third party, AT&T will install and monitor them. I cannot find them anywhere.  If anyone has an AT&T Smoke Detector that he or she is willing to sell, please let me know.