12
Tips
:
Please open the APP and Bluetooth, and
then pair the app with the device.
Only when you wear the device and open the
APP at the same time, the data will be
synchronized to the APP.
For more details about ViHealth App, please refer
to the ViHealth App user manual.
5 Technical Specifications
A. SpO
2
Measurement
Transducer: dual-wavelength LED sensor with
wavelength:
Red light: 663 nm, Infrared light: 890 nm.
Maximal average optical output power:
≤2mW
SpO
2
display range:
35%~100%
SpO
2
measuring accuracy:
≤ 2% for SpO
2
range from 70% to 100%
B. Pulse Rate measurement
PR display range: 30bpm~240bpm