SpO2 means the saturation percentage of oxygen in the blood.

The normal range varies by individual, but usually over 95%, otherwise, please consult your physician.

The measured SpO2 and PR value changes in correspondence with the change of patient's physiological conditions.

Do not shake the finger, and keep calm during the measurement. Please also avoid the Oximeter and the cuff on the same limb for blood pressure and oxygen saturation measurement simultaneously.

Remove the batteries immediately and dry the Oximeter completely with a hair dryer.

Hold breath for a while (50 seconds or more), if the SpO2 value significantly decreases, it means that the SpO2 reading truly reflects the physiological condition change.

The icon of low battery will appear on the screen when the battery voltages are low. By then, batteries need to be replaced.

• Intravascular dyes such as indocyanine green or methylene blue;
• Exposure to excessive illumination, such as surgical lamps, bilirubin lamps, fluorescent lights, infrared heating lamps, or direct sunlight;
• Vascular dyes or external used color-up product such as nail enamel or color skin care;d) Excessive patient movement;
• Placement of a sensor on an extremity with a blood pressure cuff, arterial catheter, or intravascular line;
• Exposure to the chamber with High pressure oxygen;
• There is an arterial occlusion proximal to the sensor;
• Blood vessel contraction caused by peripheral vessel hyperkinesias or body temperature decreasing;
• Low perfusion condition (Perfusion Index is small).