Pulse oximeters: most accurate home model?

[arthuref]

I found this 2016 study: The Accuracy of 6 Inexpensive Pulse Oximeters Not Cleared by the Food and Drug Administration, which says:

CONCLUSIONS:
Many low-cost pulse oximeters sold to consumers demonstrate highly inaccurate readings. Unexpectedly, the accuracy of some low-cost pulse oximeters tested here performed similarly to more expensive, ISO-cleared units when measuring hypoxia in healthy subjects. None of those tested here met World Federation of Societies of Anaesthesiologists standards, and the ideal testing conditions do not necessarily translate these findings to the clinical setting. Nonetheless, further development of accurate, low-cost oximeters for use in clinical practice is feasible and, if pursued, could improve access to safe care, especially in low-income countries.

One of the models tested was Contec CMS50DL, a more popular model here seems to be the Contec wrist models, like CMS50F. I'm wondering if anyone knows of other studies or tests involving the accuracy of home oximeters.

[SDBud]

I found this 2016 study: The Accuracy of 6 Inexpensive Pulse Oximeters Not Cleared by the Food and Drug Administration, which says:

CONCLUSIONS:
Many low-cost pulse oximeters sold to consumers demonstrate highly inaccurate readings. Unexpectedly, the accuracy of some low-cost pulse oximeters tested here performed similarly to more expensive, ISO-cleared units when measuring hypoxia in healthy subjects. None of those tested here met World Federation of Societies of Anaesthesiologists standards, and the ideal testing conditions do not necessarily translate these findings to the clinical setting. Nonetheless, further development of accurate, low-cost oximeters for use in clinical practice is feasible and, if pursued, could improve access to safe care, especially in low-income countries.

One of the models tested was Contec CMS50DL, a more popular model here seems to be the Contec wrist models, like CMS50F. I'm wondering if anyone knows of other studies or tests involving the accuracy of home oximeters.

I have a cheap finger device I got on Amazon, Contec model, and have checked it several times against pro machines at Doctors offices,
and it has always been within 2 points of those machines.

[HoseCrusher]

The key point is to check your device with one of known accuracy and adjust your readings accordingly. This is easy to do and help you get accurate information.

[arthuref]

I have a cheap finger device I got on Amazon, Contec model, and have checked it several times against pro machines at Doctors offices,
and it has always been within 2 points of those machines.

Ah, good to know. One of the Contec wrist models, with separate finger sensor?

The key point is to check your device with one of known accuracy and adjust your readings accordingly. This is easy to do and help you get accurate information.

I'll definitely try to do that next time I have access to one.