80x50mm yellow magnetic field viewing film *new*

This thing will reveal the magical world of magnets. This magnetism indicator strip can be used as a toy or as an important tool. Stick the strip next to the magnet and the yellow side turns dark where magnetism is present at it's highest. This tester will not show everything thoug, and it can't identify south or north magnetic poles.

Couple of use examples:

• Find location of magnets in laptops, phones and tablets.
• Inspect if ring magnet is solid or does it have some segments, ie check if your encoder is in good contition.
• Find out if your bearings are magnetic.
• Check the shape and size of hidden magnets.

Magnetic indicator strip technical details:

• Indicator part size:
  • 80x50x0,3mm
• Overall dimensions:
  • 95x65x0,3mm
• Method of operation:
  • Magic (most likely some sort of trapped ferrofluid or something)