It works by irradiating the product with X-rays to obtain a transmission image, and then using image processing technology to determine whether the image contains foreign objects.Its detection range is not limited to product type, packaging form, or packaging material, including plastic packaging, aluminum foil packaging, glass jars, metal cans, and bulk products.It can detect foreign objects of relatively high density, including both metals and non-metals, such as stainless steel, iron, ceramics, glass, stones, bones, hard rubber, and hard plastics. Specific requirements depend on the product being tested.