1. Reusable, leaves no residue, significantly reduces maintenance costs, environmentally friendly and economical. 2. For modules with wireless charging areas, used to detect magnet status. 3. Does not damage the original structure, protects device integrity, non-destructive and efficient, convenient and quick. 4. Magnetic pole distribution is clearly visible, extremely high detection efficiency. 5. This test card is specifically designed for testing non-original polarizers; the latest FOG screens cannot be tested using original polarizers.
