Oxygenated blood absorbs light preferentially at 940nm (near infra-red light), whereas deoxygenated blood absorbs light preferentially at 660nm(red light). A pulse oximeter works by passing a beam of red and infra-red light through a pulsating capillary bed and then measures the amount of red and infra-red light emerging from the tissues via a sensor.The relative a bsorption of light by oxyhemoglobin (HbO) and deoxyhemoglobin is then processed according to the Beer-Lambert’s law and the oxygen saturation level (SpO2) determined. For Sports or Aviation use.
- Name: AD805 FINGER PULSE OXIMETER OLED TYPE
- Material: PU Plastic
- Power: AAA BATTERIES SUPPORT X 2 UNITS
- Summary: High quality, medical standard.
- Brand: AIQURA
- Perfusion index
- Oxygen Saturation
- Pulse Bar Graph
- Pulse Rate
- Support Heart rate measure, blood oxygen measure, display switch, 8s auto shutdown, Low battery reminder.
Display range: 35%-100%
Accuracy: 70-99%, ±2%; 0-69% no definition.
Measurement range: 25-250 BPM
Accuracy: ± 1BPM/± 1% BPM(Take the larger value)
2pcs AAA batteries
Operation Temperature: 5°C~40°C