MAG
The Dual Technique Magnetometer (MAG) measures the strength and direction of the magnetic field around Saturn. The magnetic fields are generated partly by the intensely hot molten core at Saturn's centre. Measuring the magnetic field is one of the ways to study the core, even though it is far too hot and deep to actually send a probe.
MAG's goals are to develop a three-dimensional model of Saturn's magnetosphere, as well as determine the magnetic state of Titan and its atmosphere, and the icy satellites and their role in the magnetosphere of Saturn.