1.Record the braking distance automatic.

2. Record the mileage and time of the car running

3. Record the average speed,maximum speed,maximum

rotation speed,maximum acceleration and maximum

deceleration of the car

4. The user could calculate the KV value by

themselves(KV=RPM speed/voltage).

5.The user can monitor the speed,revolving speed,

acceleration and mileage of the car.

6.Support the imperial and international unit conversion.