The principle of CMS50DL pulse oximeter is as follows: photoelectric oxyhemoglobin inspection technology is adopted in accordance with the ability pulse scanning and recording technology, the pulse oximeter can be used to measure oxygen saturation and pulse rate through the finger. used in family, hospital, oxygen bar, community health care, physical assistance in sports (it can be used before or after sports, and it is not recommended to use the device in the process of sports), etc. ■ Integrated with SpO2 probe and processing display module ■ Small volume 、 light and convenient to carry ■ Product operation is simple, low power consumption ■ Pulse rate value display, histogram display ■ Low-voltage indication: The low-voltage indicator appears before abnormal operation due to low voltage.