What is the installer code for ADT?
Summary of the Article: 1. What does ADT use for installer code? ADT for years has used Honeywell/Ademco systems so don’t be fooled by the ADT label on the keypad. Its probably a Honeywell product. The default Installer Code for all Honeywell/Ademco alarm panels (hardwired and wireless) is 4112. 2. What is the master code […]