# SensorAirflow (UORB message) [source file](https://github.com/PX4/PX4-Autopilot/blob/main/msg/SensorAirflow.msg) ```c uint64 timestamp # time since system start (microseconds) uint32 device_id # unique device ID for the sensor that does not change between power cycles float32 speed # the speed being reported by the wind / airflow sensor float32 direction # the direction being reported by the wind / airflow sensor uint8 status # Status code from the sensor ```