The Dr Trust Pulse Oximeter 209. It provides you clinically accurate measurement of blood oxygen (SpO2) value, pulse rate (PR) and oxygen probe all together. It is a small, lightweight fingertip design which can be attached painlessly to your fingertip. It sends light through the finger to measure the level of oxygen in your system and pulse rate. This device is featuring a bright and large size colour TFT screen which is easy in the dark conditions or even by a person with poor eyesight. Its finger chamber fits different
