Which of these inventions is used to find direction?

The compass, in navigation or surveying, is the primary device for direction-finding on the surface of the Earth. Compasses may operate on magnetic or gyroscopic principles, or by determining the direction of the Sun or a star. The oldest and most familiar type of compass is the magnetic compass, which is used in different forms in aircraft, ships, and land vehicles, as well as by surveyors.

Source: Britannica