blood oxygen pulse oximeter
2*AAA 1.5V Alkaline batteries
8 seconds display test results
Operating temperature:5℃ to 40℃
Storage temperature: -20℃ to 55℃
Relative humidity:15% to 85% non-condensing.
Pulse rate: 2 BPM
Pulse rate Display
Hemoglobin saturation Display
Pulse oximeters provide a non-invasive way to measure blood oxygen saturation or arterial hemoglobin saturation. Pulse oximeter can also detect arterial pulse, so it can also calculate and inform the patient's heart rate.
Based on the change in light absorption during arterial pulsation. Two light sources located in the visible red spectrum (660 nanometers) and infrared spectrum (940 nanometers) alternately illuminate the tested area (usually fingertips or earlobes). The amount of light absorbed during these pulsations is related to the oxygen content in the blood. The microprocessor calculates the ratio of the two spectra absorbed and compares the result with the saturation value table stored in the memory to obtain the blood oxygen saturation.
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