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Magnetic force and bearing can be tested using electromagnetic sensors.
Magnetic Sensor V
1. Magnetic Sersor x, y, z
2. Sersor Data Save (Local file Create)
3. Microtesla Data
4. Milligauss Data
5. Azimuth, Pitch, Roll
Using an electromagnetic sensor can be tested and self-defense.
If you use the "save" function can be a real time saving.
You can share the stored test record.