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' ' - The absolute accuracy of the magnetometer is as high as ./year, and the long-term drift is only ./year. This system has the following important characteristics, so it has excellent application results in many fields such as earthquake precursor observation and long-term volcano monitoring.
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'-Magnetometers are widely used in many fields such as observatories. The seismic observation network of the China Earthquake Administration has been equipped with multiple magnetometers of this kind for monitoring earthquake precursors. Magnetometers are also widely used in Japan’s seismological stations and the world’s volcano forecasting stations
Scalar magnetometer provided by Wuhan GeoExploration 18607148818 Xiao Zhu