Our next add-on for the Nexia Home Intelligence System is the Nexia Home Motion Sensor. With this sensor you can be instantly notified if someone or something is in your house when you aren't home. Combine this with the Home Camera and record a short video when the sensor is activated. How well does it Our next add-on for the Nexia Home Intelligence System is the Nexia Home Motion Sensor. With this sensor you can be instantly notified if someone or something is in your house when you aren't home. Combine this with the Home Camera and record a short video when the sensor is activated. How well does it