Features: 【Precise Magnetic Field Detection】Utilising high-sensitivity sensors, it accurately identifies the north and south poles of magnets, enhancing detection accuracy. 【Simple and User-Friendly】Featuring intuitived design, users need only bring the detector close to the magnet to obtain results quickly. 【LED Light】Equipped with an LED light that clearly displays polarity results: red indicates the North， green indicates the South . 【Portable Design】Compact and lightweight for easy portability, suitable for field testing and laboratory use. 【Versatile Applications】Ideal for educational demonstrations, scientific experiments, engineering testing and other scenarios, serving as an excellent tool for understanding magnetic field properties. Specifications: Component: ABS. Dimensions: Module 25x13.7mm. Weight: 10g. Working voltages: 26V. Magnetic field strength: Unlimitedly. Output current: 20mA. Operating temperature ranges: -40°C to +90°C. Storage temperature: -65°C to +150°C. Package heat dissipation wattage: 500mw. Package Includes: 1PC Magnet direction detector note: Due to problem of lighting effect,there might be tolerances in product, please understand. Please allow 0-1cm error due to the measurment