Magnetic Compass Radio Holland, in navigation or surveying, an instrument for determining direction on the surface of Earth by means of a magnetic pointer that aligns itself with Earth’s magnetic field. The magnetic compass is the oldest and most familiar type of compass and is used in different forms in aircraft, ships, and land vehicles and by surveyors.
Magnetic Compass Radio Holland
- Ceiling and table top compass
- Low cost
- Make it easy
- Graduated scale