Imagine the device mounted at the side of a door, able to detect any movement through the door. The device would track the amount of people who have used the bathroom and cleaners could be notified by the red light that the bathroom may need to be cleaned. They can then push the button, resetting the count so that they can be notified again in the future. Instead of manually checking the bathroom, they would be able to see the light from afar, making their job more efficient.

Another usage could be to allow a group such as a university or company to track room usage. This information could allow them to be able to tell how useful a certain room is to people through the amount of people detected going into and out of a room. This could be a powerful tool in addition to user feedback, allowing a university or company to invest money and time into the most useful places.