Fluxgate Magnetometer FGM-301

The same high precision magnetometer that is an exceptional magnetic heading reference sensor for our AHRS units is also available as a stand-alone analog magnetic sensor. Its high accuracy makes the Watson FGM an ideal choice for inertial navigation, geological mapping, and heading reference.


  • High Accuracy
  • High Resolution
  • High Reliability
  • Low Noise
  • Low Power
  • Small Size and Weight
  • Two Year Warranty
  • Engineering Support

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The FGM-301 is the best product for measuring DC and low frequency magnetic fields in three dimensions. This is a compact magnetic sensing device suitable for a wide variety of magnetic field measurement applications. Being an analog sensor, the FGM-301 provides high resolution and low signal delay. This product is far more stable and linear than magneto-resistive and magneto-inductive magnetometers.

Watson Industries has been developing state-of-the-art fluxgate magnetometers for almost thirty years to provide the FGM-301. As a result, this magnetometer is relied on for precision measurements in very critical projects around the world, including near the north and south poles.