1) High sensitivity to ferrous articles in stainless steel, copper, aluminum and tinfoil ... 3) Easy to use Features:1) High sensitivity to ferrous articles in stainless steel, copper, aluminum and tinfoil 2) ... apparatus can be selected to link with production lineApplications: Detects metal impurities in food, pharmaceutical, food ingredients, condiment, health ... (mm)0.81.01.53.0 GJ-7C-2 Metal Detector