Hogtnd A Field Viewer Map Observation Green Magnetic Sources 25X35mm 40X45mm 30X50mm For Scientific Magnetic Circuits Field Viewer Film Viewing Paper Rod Display Circuit

Hogtnd A Field Viewer Map Observation Green Magnetic Sources 25X35mm 40X45mm 30X50mm For Scientific Magnetic Circuits Field Viewer Film Viewing Paper Rod Display Circuit

hogtnd

Application: performance, convenient and practical, suitable for home and professional use Easy to Use Just place the card on the surface of the magnetic material and a magnetic field with pattern will appear Lightweight size: portable and easy to store and carry, providing you convenience High quality: made of high quality magnet Ideal for personal or scientific research and helps us examine magnetic fields that we cannot see, Manufacturer: hogtnd

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