AV-Mag external magnetometer is a 3-axis electronic compass. AV-Mag precisely measures the earth’s magnetic field and aids the AV-30 directional heading measurement, improving long-term accuracy and consistency.

 Width:

 1.49 Inches (37.846 mm)

 Height:

 0.67 Inches (17.018 mm)

 Depth:

 2.38 Inches (60.452 mm)

 Weight:

 1.4 oz (40.0 grams)

For the AV-Mag to be effective, the installation and calibration must be done with accuracy and precision.