Flux detector film makes magnetic fields visible - 75 x 75 mm

It is a special film with enclosed iron particles - this film makes the magnetic field visible between the magnetic poles in an almost miraculous way!
The magnetic poles make the film darkly colored when it is placed - on the other hand, the areas between the north and south pole appear light.
This film is incorporated into a laminate - this makes the flux detector stiffer, more durable and less prone to unsightly kinks.
Alternatively, we also offer the flux film with a size of 150 x 150 mm: 
Flux detector film large makes magnetic fields visible - 150 x 150 mm

Dimensions:
Detector area: approx. 75 x 75 mm
Overall size: approx. 120 x 80 mm