SENSOR APPARATUS WITH CLEANING

A sensor apparatus includes a sensor including a sensor lens, an air nozzle fixed relative to the sensor lens and positioned to direct airflow out of the air nozzle across the sensor lens, and a fin positioned inside the air nozzle. The fin is rotatably coupled to the air nozzle and rotatable relative to the air nozzle around an axis of rotation. The fin is elongated radially from the axis of rotation. The fin is rotatable between a first position impeding airflow through the air nozzle and a second position permitting airflow through the air nozzle.