... ,SP02 Parameters:Two parameters: SPO2, Pulse rateWaveforms:SpO2 WaveformFeatures:Color OLED display, four direction adjustable.SpO2 and pulse monitoring, and ... .Runs on standard AAA batteries.Detailed descriptions of product functions:SPO2:. Measurement range: 70%-99%. Accuracy: ±2% on ... the stage of 70%~99%, unspecified(<70%) for SPO2. Resolution: ±1%. Low perfusion: <0.4%PR:. Measurement: ...