These are your tech home sensory system. Smarthome sensors can detect motion, open doors and windows, leaks and flood, humidity, and temperature. They can monitor air quality and alert you of smoke and fire. Sensors keep an eye on multiple areas of the home and notify you when their state changes.
Once the sensor is activated, you can set up rules and scheduling for them, such as turning the lights on at 8am, alerting you of a detected motion at the front door. The number of uses are limited only by your imagination.