Features. The device is applied for the patients suffering from diseases like SAS, OSAHS, COPD, ARDS and vascular diseases. It is also for the people raised 60 years of age. It can be utilized in hospital or at home. Benefits ? SpO2 Measuring range: is 35%?100% Accuracy: is 70%~100% ,±2% ?<70% unspecified ? Pulse Rate Measuring range:is 30bpm?250bpm Accuracy: is ±2 bpm or ±2%(select larger) ? Nose air flow measure Measuring range:varies from 8rpm?40rpm Accuracy: is ±2rpm
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