Symbol 3409 from ISO 7000 - Title/Meaning: Engine rotational speed, automatic control Function/description: To identify the switch or switch position for the automatic control of engine rotational speed. To indicate that engine rotational speed is in the automatic control mode.
pay attention to orientation of symbol
Own work using: iso.org/obp/graphics/grs/6495e930-a1f0-4574-810b-7aec338cb190 200.png
Vectorization:  Mrmw