Features: Multifunctional: it can detect the electromagnetic radiation level at any time, in any environment and in any environment. Examples include radiation detection, antiques, building materials, furniture, food, etc. High detection performance: the detection speed is super fast, and the instrument can measure the local radiation value. High sensitivity: high data accuracy. When the electromagnetic radiation exceeds the threshold, it will automatically give out an audible alarm. Large display: there is a visual matching window design, so that users can see radiation data. Portable design: small size, hand-held design, easy to carry. Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Description: Material:ABS Package List: 1*9V Magnetic Field Tester