User's Manual

DFD-100 User Manual
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FAQ
1. Why can’t I use DFD-100 when charging in the car?
The accessory of DFD-100 is included a car charger
for your convenience to charge in the car. Due to
driving safety, avoid distractions and the accuracy of
fatigue detection; do not use DFD-100 when charging
in the car.
2. Does DFD-100 have an instable detection in the
winter?
The DFD-100 detects driver’s heart rate change to
determine the driver’s fatigue level. The best distance
between the device and the skin is less than 5mm.
Suggestion: Do not wear heavy clothing when using
the device that in hence the accuracy of detection.
3. Does the fixer need to be attached and took off when I
use the device every time?
At first time; please attach the DFD-100 fixer to the
seat belt. When finished, you don’t need to take off