This PM 100 pulse oximeter from Medisana reliably and accurately measures your blood oxygen saturation and your heart rate. The measurement results are easy to read on the OLED display with six different display options in bar or wave chart. In addition, the screen can be set to 10 brightness levels. The heart rate and blood saturation monitor is a practical, everyday companion at home and also when travelling, thanks to the convenient "one-touch" operation. The saturation meter automatically switches off after 8 seconds, for a long lifespan.