![](https://sm.mashable.com/t/mashable_in/photo/default/pulse-oximeter-cv_hjkk.640.jpg)
As pulse oximeter become hard to find, a smartphone app has come to the aid of the people who need to monitor blood oxygen levels and pulse rates at home. As pulse oximeters become hard to find, a smartphone app has come to the aid of the people who need to monitor blood oxygen levels and pulse rates at home.
from Mashable India tech https://ift.tt/34eQAIo
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