A part of the review has been auto-translated.
He looks very good, and he arrived very quickly. I checked his heart rate and blood oxygen readings, accurate. Probably the blood sugar, too, and we'll check it later. The EKG is working very well, the blood pressure can be calibrated. Your screen is very nice. There are settings I haven't found yet. Unfortunately, there are few backgrounds to choose from and not all of them work well.
Arrived in good condition and is quite accurate on several functions which I compared with my temperature using thermometer then blood pressure monitor then a blood sugar meter, and other devices, the only function I haven't tried is ECG but it just needs a little more time to set up with certain conditions having to be managed. Over all these functions compared to dedicated instruments the difference was in the 0.01 - 0.02 region.