Products Driving Safety Patient Monitor (coming soon)   Product > Driving Safety Driving Safety    Select 3 products at most each time for comparison compare   HPV/ fatigue detector (DFD-100B) The DFD-100B is a driver hypo-vigilance (HPV)/ fatigue detector that detects driver’s heart rate change to determine the driver’s HPV/ fatigue.   compare   HPV/ fatigue detector The DFD-100 is a driver hypo-vigilance (HPV)/ fatigue detector that detects driver’s heart rate change to determine the driver’s HPV/ fatigue.

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