... .3" 65K Color OLED displayScreen Resolution: 128*96SpO2 Measuring Range: 0%~100%, (the resolution is 1%).Accuracy: 70%~100%: ±2% ,Below ... rate can be shown correctly when pulse-filling ratio is 0.4%. SpO2 error is ±4%, pulse rate error is ±2 ... times.Safety Type: Interior Battery, BF Type Finger pulse oximeter -M001