Based on the queries we have seen, we bring you more detailed information about the different types of materials that are detected by the security frame.
| Material | Degree of magnetic field influence | Examples of things containing material | Permeability (μ) – range |
| Iron | High | Metal buttons, clasps, brooches | Several hundred to thousands |
| Nickel | High | Some types of jewelry | Several hundred to thousands |
| Kobalt | High | Special alloys in accessories | Several hundred to thousands |
| Stainless steel | Medium to high | Watches, pendants | Close to 1 to several hundred |
| Copper | Low | Decorative jewelry, zippers | Close to 1 |
| Aluminium | Low | Some types of hair clips | Close to 1 |
| Gold | Extremely low | Jewelry, watches | Close to 1 |
| Silver | Extremely low | Jewelry, watches | Close to 1 |
| Plastic | None | Buttons, decorations | Close to 1 |
| Textiles | None | Clothing, fabric accessories | Close to 1 |
Further details can be found, for example, on this website.