TRU COMPONENTS TRU COMPONENTS Magnetic field detection film 1568274 (L x W) 17.5 cm x 10 cm

This indication foil can be used to manipulations by external magnetic field exposure (as in the case of older mechanical electricity meters is possible). After exposure of a magnetic field remains a characteristic pattern. Through a very spot of magnetic field (stylus with magnetic tip), the film also as often described or painted. The "Delete" is carried out by a large-area magnetic field, the particles again" in the form". Through the universal application of additional applications are also conceivab...