Review on 💙 Improved CMS50NA Pulse Oximeter: High-Performance Blood Oxygen Saturation Monitor (Navy Blue) by Bobby Martinez

Easy to use with just one button to turn on. Put it on your finger and after a while you will have your reading. He doesn't have much to do. The LED display is bright and easy to read. Also, when the device is on, you can adjust the brightness by pressing and holding the button. There are 5 different brightness levels. You hold the button down until the brightness is adjusted, then release the button and hold it again, and the brightness is adjusted in another step. Once the display has reached min/max brightness, another long press on the button sends the display in the other direction. The device is in use. This pulse oximeter also has the neat feature that it adjusts the reading depending on how it's held upright! Holding this device horizontally will give you a waveform on the display, but holding it vertically will not show a waveform. This is a really neat feature. The device seems accurate compared to another pulse oximeter I have. In general, this item works as expected, the price is pleasant, I have no complaints! I especially like the rotatable display!