About This

• 【Patterned Magnetic Field Display】This magnetic card detector can easily display a patterned magnetic field when placed on the of a magnetic material, allowing for the visualization of otherwise invisible magnetic fields.
• 【Versatile Usage】for personal or scientific research purposes, this detector aids in studying magnetic fields that are not observable. It can be applied in quality control, product demonstrations, reverse engineering, certification, and for educational contexts.
• 【Portable and Lightweight】Designed to be compact and lightweight, this detector is easy to carry and transport, convenience and flexibility for various applications.
• 【Perfect for educational Tool】A fantastic tool to cultivate interest in science, this Magnetic Field Viewer is a micro-encapsulated film that enables users to visualize static magnetic fields. Its highly flexible film can adapt to magnetic surfaces of any shape, offering versatility for exploration.
• 【Dimensions and Color】Available in dimensions of 25*50mm and 50mm*75mm, this detector features a dark green color. It comes with 1 piece of Magnetic Field Viewer as included in the package.