Measurement indicators of oximeter: Blood oxygen saturation (SpO2), Pulse rate (PR), Perfusion index (PI)
Living in the fast-paced 21st century, people consume a lot of mental and physical energy, with at least 8 hours of busy work every day. Faced with computer screens, it is inevitable to experience symptoms such as dizziness, bulging eyes, slow reaction, and mental fatigue. Due to long-term high tension in the brain, it is …