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Mini Compasses - Pack of 4

SKU #ODZ-171
Availability:
Backordered until 8/31/2024
*Backordered: 8/31/2024
Great to detect magnetic fields.

Description

While these do not always point North, they definitely will point at a local magnetic field. Great to detect magnetic fields. Originally used with an electromagnet to indicate when it was working. ~15 mm diameter.

Q & A