Ключевые слова: blood, closeup, corona virus, coronavirus, covid19, device, digital, display, electronic thermometer, equipment, finger, finger clip, fingertip, hand, health, healthcare and medicine, heart rate monitor, heartbeat, human hand, level, machine, man, measurement, medical, medical equipment, medical mask, medicine, modern, monitor, monitoring, oximeter, oximetry, oxygen, oxygenated, person, pneumonia, pulse, pulse oximeter, pulse oxymeter, pulsometer, rate, saturation, technology, thermometer,