Blood oxygen display: 30~250BPM;
Accuracy: oxygen saturation: +/-2% at 70%~99%, +/-3% when <70%; Pulse rate: +/-2BPM;
Displays heart rate waveform, oxygen saturation, pulse rate, bar graph, battery level;
Powered by 2*AAA batteries;
Can change display method;
Auto power off function: Will auto power off when remove finger for 5s;
Easy operation;
Used to measure oxygen saturation and heart rate;
Suitable for home and hospital use.