The ultrasonic distance detector is tremendously useful in practical operation. To begin with, it can provide accurate distance readings, which are essential in applications where accuracy is at a premium. Secondly, because it does not matter what color or texture the target object has, its level of reliability is extremely high. Moreover, how it works properly work even in an environment with light, smoke and dust when other types of sensors would fail. Its compact size makes it usable for many kinds of systems, and its low power consumption contributes to energy conservation initiatives. Besides, the ultrasonic distance detector is reasonably priced durable and in need of little maintenance; surely this is worthy of an investment.