Thank you Riva. I appreciate this information.I had a Clinical Guard Oximeter that was accurate to near enough, close enough standards the model I had you was able to get a data upload with it. it was reasonably priced at the time.
https://www.clinicalguard.com.au/health-monitors/oximeters.html
I know have a cheaper Able oximeter I picked up at my pharmacy that its ok as well, but it is a wysiwyg meter.
https://ableasthma.com.au/product/able-fingertip-pulse-oximeter/
I am wondering if anyone can advise me on finding a reliable Pulse Oximeter with a UK CE Mark?