Major Features��Integrated with SpO2 probe and processing display module��Small in volume��light in weight and convenient in carrying��Operation of the product is simple ， low power consumption��SpO2 value display��Pulse rate value display， bar graph display��Pulse waveform display��Battery capacity indication��The display mode can be changed��Automatically power off function: when the device is under the state of measuring interface . it will automatically power off within 5 seconds if the finger falls out of probeMain performanceDisplay Mode: 1.1" Color OLED display Screen Resolution: 96*64SpO2 Measuring Range: 0%��100%， (the resolution is 1%).Accuracy: 70%��100%: ��2% ， Below 70% unspecified.PR Measuring Range: 30bpm��250bpm， (the resolution is 1bpm)Accuracy: ��2bpm or ��2% (select larger)Measurement Performance in Weak Filling Condition: SpO2 and pulse rate can be shown correctly when pulse-filling ratio is 0.4%. SpO2 error is ��4%， pulse rate error is ��2 bpm or ��2% (select larger).Resistance to Surrounding Light: The deviation between the value measured in the condition of man-made light or indoor natural light and that of darkroom is less than ��1%.Power Consumption: less than 30mAVoltage: DC 3.0VPower Supply: 1.5V (AAA size) alkaline batteries �� 2Battery Working Hour: The minimum continually work time is 20 hours ， theoretical number is 32 hours.Safety Type: Interior Battery， BF TypeAccessoriesSell in standard: ��A hanging rope��A user manualPhysical IdentityDimension: 66(L) �� 36(W) �� 33 (H) mmWeight: About 50g (with the batteries)QualificationPassed FDA and CE