CMS Magnetics - Magnetic Pole Detector, a Handy Polarity Identifier to Determine Magnet's North or South Poles, Great for School Teachers, Science Projects, and Metal Detector

This magnetic pole detector is a great low-cost tool to view and identify the polarity of magnets, or to find out if an object is magnetic. It's simple yet durable construction means that this detector makes a great educational tool for teaching students about the properties of magnets and their magnetic fields.

This magnetic pole detector consists of a bar magnet with its north pole painted red and its south pole painted blue. When held up to the south pole of a magnet, the red end of the indicator will be pointing toward the magnet.