Help protect your home and family from smoke, carbon monoxide, and water leaks. Includes an ADT Smoke Alarm, an ADT Carbon Monoxide Alarm, and an ADT Water Leak Detector. Initiate optional ADT professional monitoring services, receive alerts, or set connected devices to turn on and off when smoke, carbon monoxide, or a water leak is detected in your home. Requires an ADT Security Hub. Connected devices and services sold separately. Requires an ADT Security Hub, plus one or more compatible ADT devices. ADT professional monitoring services may not be available in all areas and may require permitting or additional service fees.