Have you ever wanted to get notified when you have new visitors? The Floor Mat Sensor by Dakota Alert can help. Just place it under a welcome mat, and you will receive an alert when someone steps on the mat. You can use it to figure out when you have a guest. It is also useful for folks who have a patient at home who should not be moving around. The receiver has a wireless range of 1000 feet. The device sounds a chime or flashes a light when it receives a signal. This is not too expensive either.