1, pulse oximeter CE certified 2, OEM brand accept 3, SpO2 and pulse monitoring, and histogram of pulse display Technical ... range: SpO2 display: 50%--99% resolution: + 1% Pulse rate display: 30bpm-240bpm, Resolution: + 1bpm3, Power supply ... 3.3V4, Operating current: < 10mA5, Resolution: SpO2 + 1%, Pulse rate: + 1 bpm6, Accuracy: SpO2 + 2% (during ... batteries3, A pouch4, A User Manual pulse oximeter