The speed setting of the treadmill is not only inaccurate, but simply wrong. I bought and measured it a measuring wheel. So is the difference between 12km / h and 15km / h almost 0th
At 18km / h setting there are about 15km / h and 18.1km / h's really 18th
This means that the running tracks, which indicates the tape is incorrect.
Second gripe is the "Manual". Unfortunately, this is worse than useless. Important information are not to be found there.
For an interval workout with preset Pace must either convert the creative programs of the treadmill to use, or you stick to the pace clock.
For an amateur runner, the device is sufficient for specific training not.