  We propose a scheme to detect light scalar moduli dark matter, based on
measuring the change of magnetization induced in a macroscopic hard
ferromagnet. Our method can probe moduli dark matter at the natural coupling to
the electron mass over several orders of magnitude in the moduli mass. The most
attracting feature of the proposed approach, compared to mechanical ones, is
that it relies on a nonresonant detection, allowing to probe a much wider
region of the parameter space. This is a crucial point, as long as the theory
is not able to predict the moduli mass.
