Our ultrasonic product's frequency range is rated from 25 to 40KHz, with detection distances ranging from the nearest 0.2 meters to 18 meters, and is available in three different applications: transmitter, receiver, and dual function. For example, object detective, distance measurement, and repelling animals or insects have widely used ultrasonic components. In addition, ultrasonic atomizers made of piezoelectric materials have also been mass-produced in recent years.