The Tekmar T077 indoor sensor plate is a great way to keep your floors clean and free of debris. The plate is made of durable plastic and has a built-in sensor that detects when something is placed on it. When the sensor detects movement, it will send a signal to the included controller, which will then start cleaning. The Tekmar T077 indoor sensor plate is perfect for use in areas where there is a lot of foot traffic, such as hallways and staircases.