Display type: TFT display SpO2. It is very suitable for oxygen and pulse reading, and has very small error margin. The bright OLED display can be clearly read in the dark, indoors or in bright sunlight.
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It automatically powers off after 30 seconds of removing your finger to save energy. The results are displayed on a large LED display, providing you with convenient monitoring. The oxygen saturation of normal human arterial blood is 95-98% and that of venous blood is 75%.
eBay
Display type: TFT display SpO2. It is very suitable for oxygen and pulse reading, and has very small error margin. The bright OLED display can be clearly read in the dark, indoors or in bright sunlight.
eBay
eBay
Due to the difference between different monitors, the picture may not reflect the actual color of the item. Small and light weight, convenient to carry. 2-Direction Display adjustable. Power by: 2xAAA Battery (not included).
eBay
eBay
A person's blood oxygen level is an indicator of how well the body distributes oxygen from the lungs to the cells. A normal blood oxygen level typically ranges from 95 to 100% SpO2. The lower the oxygen level can lead to the problem in body tissue and organs.
eBay
Display type: TFT display SpO2. It is very suitable for oxygen and pulse reading, and has very small error margin. The bright OLED display can be clearly read in the dark, indoors or in bright sunlight.
eBay