SMMS Ferro check model is specially designed model for inspection of Metal Contaminationin Foil packed products this machine accurately detects and rejects any Ferrous contamination from the products.For processeswith both plastic pack and foil pack productswe have a dual Model â??Ferro + ALL Metal Modelâ?? which detects Ferrous contaminationin Foil Packed Products and All Metal Contaminationsin Plastic Packed Products.