1.Easy to carry: with our ultrasonic device, tracking your size is child's play. Its compact and lightweight design makes it easy to transport home, school or travel. Simply slip it into luggage or carryon wallet and easily take measurements anytime, anywhere. 2.Fast monitoring: Get accurate readings from just the push of a button. Even children can measure their size easily and no particular skill or complicated setup is required. This is a solution for easy home monitoring. 3.Eliminate Handling Errors: Equipped with a clear electronic display, this ultrasonic tool avoids errors caused by handling, ensuring that results are often displayed accurately. 4.WIDELY USED: Follow the size of your child regularly and easily thanks to our ultrasonic ultrasound. This device is versatile, suitable for both children and adults, and can meet the needs of users of different ages. With a wide range of applications, monitoring changes in becomes child's play