I am a pediatric home health nurse and this pulse ox has been great! It it small enough to read their tiny fingers very accurately. The pulse ox is very responsive and starts reading within 1-2 seconds. I like how it has the visual aspect to it so you know it's reading. The kids love the polar bear on the front as well. It is really unique that you can switch the display to view it at any angle which is super helpful depending on the patient. The only downside is when you open it to place it on a finger it is a little stiff and sticks shut or partially open at times. Otherwise this is an awesome product!