It has been shown that local measurement of the coercive force by the magnitude of the demagnetizing current has a fundamental limitation on the measurement range. It is reasonable to make local measurements of the coercive force of ferromagnetic objects by the magnitude of the tangential component of the magnetic field in the interpolar space on the surface of the tested object, i.e. by the internal field. It allows for expansion of the measurement range of Hc. In addition, the influence of the gap between the transducer and the object, as well as the shape and size of tested objects on the measurement results, is significantly reduced. This makes it possible to measure the absolute values of Hc of homogeneous ferromagnetic objects, as well as measure the coercive force of objects with non-ferromagnetic coatings of significant thickness.