Motion Wi-Fi Sensing Plugs cannot distinguish between different sources of motion. The closest it achieves is detecting if the amount of disturbance in the Wi-Fi signal is proportional to the size of a person. That said, you can adjust the detection sensitivity in the “Manage Zones” page to exclude smaller pets from motion detection. Larger pets like a big dog would be more difficult to exclude while still receiving the motion reports you want from the people inside the Residence.