The blood oxygen meter mainly uses a 0.96 inch yellow and blue dual color display. It is widely used in hospitals, and as it enters pharmacies, it is also increasingly used in household medicine.
![Public information display](http://www.qihantec.com/wp-content/uploads/2023/06/air.jpg)
The blood oxygen meter mainly uses a 0.96 inch yellow and blue dual color display. It is widely used in hospitals, and as it enters pharmacies, it is also increasingly used in household medicine.
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