Hello and thanks for the question. This home security kit will work without ADT monitoring. Once setup and installed along with your sensors and devices, you can control and monitor from your phone via the Samsung SmartThings App. The ADT Security Hub works with a wide range of connected devices, including Z-Wave and ZigBee lights, cameras, doorbells, door locks, thermostats, sensors, and more. You can find more helpful information on SmartThings.com.
~Samsung Brand Ambassador