Your version looks all right.
To get more technical (easy if you have a picture):
If "measurement paths" is in the plural like that, it might refer to the three paths between the transducers, which are arranged at an inclined angle. But if you just speak of the "measurement path" for the whole device, that might still be vertical with these as be the three components. There is also the idea that you can measure airflow coming in at different angles.

Vielen, vielen Dank fÌr die genaue ErklÀrung.