OX-F Finger Oximeter Product detailParametersTwo parametersSPO2, Pulse Rate.Waveforms:No waveform.Features1Tiny, light, "all-in-one" ... , easy for carrying;2LED screen with SpO2, PR and Pulse strength measurements;3Immediately, real-time spot-check;4Single button interface ... ~100%Accuracy: ±2%(70~100%),0~69% unspecifiedResolution:1%Pulse RateMeasurement range:30-250 bpm Accuracy:±2 bpm Resolution:1bpm ...