User's Manual

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4.4 Bluetooth and APP
4.4.1 Download instructions
1.Scan the code and install the app, as shown in the figure below.
2.Open the download link at https://www.pgyer.com/spo2? Sign=& auSign=& Code = Download
mobile APP-NargMed.
4.4.2 Operation interface description
1.Click the“connect to device” button. Then switch to the measurement interface.
1. Unit of blood oxygen saturation: SpO2%。
2. Measured value of blood oxygen saturation: the display range is [1 ~ 100] and the sign “---” means
invalid value。
3. Unit of pulse rate: PR/min。
4. When the unit of pulse rate (3) lights up, display the measured value of pulse rate. The display range of
pulse rate is [25 ~ 250] and the sign “---” means invalid value.
5. Unit of perfusion index: PI%