If you're very conscious about your oxygen level or heart rate, it's nice to have continuous insight into your saturation readings. With the Beurer PO60 saturation reader, you can simply keep track or your readings in the Beurer Connect app on your phone. You connect the reader with the app via Bluetooth. The reading itself is very simple. Just place your finger in the reader, press the button, and the reading starts. It automatically turns off when it's done. In addition, the saturation reader is small and light, so you can easily bring it with you to work, on a trip, or while working out.