I thought it might be movement artifacts, but this seemed pretty severe. And, as I said, I sat perfectly still with it on and still registered all of these dips. I have seen lots of graphs online that looks more regular with small variations but none of these "drop-outs". I think I have a defective ...

Thanks. I get the same readings in the included software unfortunately.

Hi All, I am attempting a self diagnosis of sleep apnea using a CMS50E I just bought. It was suggested to me that I try using a PO to see if I had obvious issues with SpO2 and pulse at night. I purchased the CMS50E after reading many reviews online that this was a low cost alternative that worked wi...