Can you write on this causing a magnetic image to appear if you attached a small neodymium magnet to the end of dried up pen?

Only if you have a small enough magnet, otherwise the characters would be so large you could only write one word.After reading "Sadly, no." I tried with a small motor magnet and was able to produce "123" and "Hi" that were legible from the front.Not sure if that is useful for you.

Will this show the tracks on magnetic audio tape?

Not usefully. It might just show some magnetic field on a cleverly recorded tape (eg: Like a lightning flash recorder), but neither the resolution nor the contrast would show normal audio tracks. That is simply not it's function.

Magnet Source Magnetic Field Viewer Card Pack Of 1

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3048 kr

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Sold byAmazon IcelandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🧲 Unlock the invisible—magnetism made visible, anytime, anywhere!

BUILT TO LAST - Laminated plastic construction ensures durability for everyday use and long-term reliability.
CLEAR INSTRUCTIONS INCLUDED - Step-by-step guidance right on the card means no guesswork—get started immediately.
INSTANT MAGNETIC FIELD VIEWER - See invisible magnetic forces in real-time with the integrated magnetic film—perfect for professionals and curious minds alike.
POCKET SIZED MAGNETIC INSIGHT - Carry magnetic field visualization wherever you go with a sleek 2.5" x 4" laminated card.
TRUSTED BY ENTHUSIASTS EDUCATORS - Ranked #3,810 in School Supplies and praised for precision, this tool bridges fun and function.

The Magnet Source Magnetic Field Viewer Card is a compact, durable laminated tool designed to visualize magnetic fields instantly. Measuring 2.5" x 4", it includes clear instructions and a magnetic film, making it ideal for professionals, educators, and enthusiasts seeking a portable, reliable way to explore magnetism.

Specifications

ASIN	B005HYCM8M
Best Sellers Rank	#52,472 in Toys & Games ( See Top 100 in Toys & Games ) #4,026 in School Supplies
Brand	Master Magnetics
Colour	Blue
Country of Origin	USA
Customer Reviews	4.2 out of 5 stars 196 Reviews
Enclosure Material	Plastic
Global Trade Identification Number	00095421005635, 10095421005632
Item Type Name	magnetic
Manufacturer	0
Manufacturer Part Number	DMVC-1BX
Material	Plastic
Model number	DMVC-1BX
Number of Pieces	1
Shape	Rectangular
Size	2.5 x 4 inch
UPC	095421005635
Unit Count	1.0 Count

Reviews

D**H

great product, works really well.

great product, works really well. I used for a service class and passed on the link where to buy it to my service class so it can be used to find damage to an magnetic encoder strip we use on our products.

17.01.2024

D**L

Funciona

Es un juguete más para adulto, genial

26.08.2022

A**R

Works good and fits in wallet

Crazy seeing magnetics though plastic.

23.04.2026

M**N

works at a basic level

This works at a basic level, and what I mean by that is, it will show magnetic fields, but not very clearly. If you have trouble reading them, or looking for more defined readings in general, I would look at another viewer.

6.03.2023

N**.

Handy to see what items are magnatized

It was interesting seeing different magnetic items with this. It's not very effective with weak magnets though, as would be expected. This is just for those who are as curious as I am and just like to see how things work! :)

8.05.2017

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

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