Come and see our amazing products. The pulse oximeter shows your measured SpO2 and Pulse Rate(PR) and pulse strength on a high quality OLED display. Perfusion Index (PI) that will improve the reliability of the readings dramatically. The PI conveniently informs you of the strength of your pulse. It is suitable for mountain climbers,skiers,bikers,aviators or anyone interested in measuring their SpO2 and pulse rate while on the move. SpO2 and Pulse Rate now faces instead of away from the user for easy read. Taking a reading is easy,just clip it on to your finger and turn it on at the press of a button. A lanyard for convenience carrying and it needs 2 x AAA batteries for using (It is not including the AAA batteries). Pls confirm further with us if any query about packing info, inventory status and time schedule.