4000 gauss neodymium magnets

How to judge whether the neodymium magnet has 4000 gauss?

First of all, it is definitely not enough to just rely on the feeling. To judge whether the strong magnet has 4000 Gauss, you can use a Gauss meter or a Tesla meter. This instrument can intuitively display the magnetic data of the magnet table. The price is not very expensive, about 400-4000 yuan. , If you often need to use a magnet, you can prepare one....