Ключевые слова: adult, background, beat, blood, cardio, cardiology, care, caucasian, check, checking, clinic, closeup, counting, device, digital, doctor, female, finger, guy, handsome, health, heart, heartbeat, high, home, hospital, hypertension, indoors, lifestyle, male, man, measurement, measuring, medicine, monitoring, oximeter, patient, people, person, pressure, pulsation, pulse, rate, rating, rhythm, tracker, woman, young,