A metal detector is an electronic device that allows you to identify the presence of metallic objects in a specific environment. It works by emitting an electromagnetic field from a coil towards the area being inspected. When this electromagnetic field interacts with a metallic object, it causes a disturbance in the field, which is detected by the device. This results in a signal that alerts the user to the presence of metal.

One of the main objectives of this equipment is in the food and pharmaceutical industry to guarantee food safety by preventing contamination by metal fragments, another application is in other industries to avoid the passage of unwanted metals to subsequent processes that can be damaged or altered by his presence.