Home security isn't just concerned with outside threats, Vivint's Smart Home system also provides sensors and detectors that can protect the home from water damage, fire and Carbon Monoxide. Water sensors work by sending notifications to mobile devices in the event of rising moisture levels, when pipes are cold enough to freeze or other times water is detected. Smoke and fire are frequently listed as one of the biggest fears for homeowners and as such most Vivint Smart Home security systems tend to include a number of smoke and CO Detectors. These detectors not only provide wide ranging detection, but connect up through the Vivint Smart Home system to provide status updates through the Vivint Mobile App as well as triggering changes in airflow if the system includes a smart thermostat to actively slow the spread of fire.