🧲 Unlock the unseen world of magnets—because science looks cooler in color!
This 6x4 inch magnetic field viewing film uses a brownish-yellow plastic embedded with fine nickel magnetic nanoparticles to visually display magnetic field lines and intensity through color changes. Designed for strong magnets like Neodymium and SmCo, it offers reusable, automatic recovery functionality within a protective frame, making it an ideal tool for scientific study, education, and magnetic pattern detection.
| ASIN | B0B424K9LP |
| Best Sellers Rank | #22,706 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #11 in Science Education Magnets & Magnetism Kits |
| Brand | Learay |
| Brand Name | Learay |
| Customer Reviews | 4.5 out of 5 stars 229 Reviews |
| Included Components | Magnetic Field Viewing Film |
| Manufacturer | Learay |
| Material | Magnetic Nanoparticles |
| Material Type | Magnetic Nanoparticles |
| Number of Pieces | 1 |
| Shape | Rectangular |
| UPC | 707933734452 |
| Unit Count | 1 Count |
C**Y
Works great
Works great but I would recommend taking it out of the cardboard thing it comes in
B**S
You need a strong field to see the effect, but it's pretty amazing.
I have been using the green field viewer sheets for years, and they are great, but I was looking for something that made a clearer image. So I got some of these. And they are amazing! I thought they'd be good, given the reviews, but I assumed that the photos were faked. They aren't—you really do get different colors and a very striking pattern when you have an interesting magnetic field to make visible. The only downside is this: This film only works on really strong fields. Refrigerator magnets.... Nope. You need strong rare earth magnets to see a good effect. But if you have strong magnets and you need to make a striking visualization of their field.... This is a great tool for the job!
J**Y
Fun simple easy
Have you seen what different magnet fields look like? This is a great buy to help visualize what is happening.
S**I
Nice tool but not very sturdy
I got this to use in a classroom. It's not very sturdy so probably won't last long. It's really neat to see the patterns from the magnets. I haven't found a magnet to make the patterns in the photos yet.
R**E
Magnetic tone wheels for engines
Not as flexible as I had hoped but it works great for seeing cracks in tone wheels on camshaft or crankshaft tone wheels
L**V
Does what you'd expect.
Works fine. No issues.
R**S
Accurate, Versatile Tool for Diagnosing and Exploring Magnetic Fields
This magnetic field viewing film performed exactly as I needed—clearly showing the magnetic field pattern of a camshaft sensor’s target magnet so I could confirm it was functioning properly without wasting money on unnecessary parts. The detail it reveals made diagnosis quick and confident. Beyond that single repair, it’s become a fascinating tool for exploring magnets in everyday items and seeing how their fields are arranged. The film is reusable, easy to handle, and has already provided more value than I expected—both for practical troubleshooting and satisfying my curiosity.
T**L
Only good for relatively strong magnetic fields
Great concept but does not react to low intensity magnetic fields.
Trustpilot
1 month ago
2 months ago
