Bought to determine the oxygen in the blood and in the light of recent events, monitor the lungs. very easy to use, the principle of clothespins, put in without a name finger, wait a few seconds and you're done, the result is immediately displayed on the display. There are, however, failures, I don’t know how it happened, but sometimes oxygen and pulse did not show correctly, that is, oxygen was not detected, and the pulse showed under 180 ! Most likely, it is necessary to take several measurements with a short interval and that's it, let it rest. And so, everything is OK))
SadoTech Necklace: A Wireless Medical Alert System For Caregivers And Seniors
44 Review
Track Your Oxygen Levels And Heart Rate With IProven Fingertip Pulse Oximeter – Includes Battery, Case, And Lanyard In Blue
49 Review
Digital Flexi-Tip Thermometer - Accurate Fever Detection For Adults And Kids - Quick And Reliable Reading With Smiley Indicator And Protective Case By IProvèn®
44 Review
Smart bracelet Xiaomi Mi Smart Band 5 RU, black
148 Review