Download User Manual - Smart Witness

Drive Recorder Settings – Car Pulse
Before using “Car Pulse Type”, connect the White (Speed pulse) cable to
the speed pulse line on your car. Please consult your car manufacturer or
a car repair shop regarding this connection.
To receive the speed from the car using the White (Speed pulse) line,
select the speed pulse type of your car.
If you don’t know the speed pulse type of your car, select “Reset” and
drive for more than 30 minutes. “Reset” will automatically detect the
car pulse type.
The SVC400 will compare the speed pulse and GPS speed and
automatically set your car pulse type.
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