Noyafa Oximeter use Non-invasive measurement of infrared technology , accurate detection of human blood oxygen saturation and pulse. It is equipped with a high-speed processor (EPROM) to calculate the change in the amount of light absorbed by two photodiodes (660 nm and 940 nm) during the pulse of the middle artery in the finger. Quickly measure blood oxygen saturation or blood oxygen concentration in the blood. It is convenient to monitor the health of the individual at any time.