***NOTE This video incorrectly states that the needle of the compass points to a magnetic north pole. That is incorrect as the GEOGRAPHIC NORTH POLE is actually the MAGNETIC SOUTH POLE disregarding magnetic variance or declination. This is a very common mistake and is actually incorrect in many texts and on many websites. Think of the compass needle as the "Geographic North Seeking Pole" of the compass magnet. Vaguely remembering that before I shot this video I looked it up online only to find some of the incorrect websites. Only later when I built a polarity detector did I find my mistake. DIY polarity detector ua-cam.com/video/5NTch0j1gts/v-deo.html
![Elevator Tools: Magnet Field Detector [Bartol Mag-Probe HS] / Compliments of Steve Bartol](http://i.ytimg.com/vi/055O08gygYY/mqdefault.jpg)
![Elevator Tools: Magnet Field Detector [Bartol Mag-Probe HS] / Compliments of Steve Bartol](/img/tr.png)
![Elevator Tools: Waterproof Non Contact Probe [Mag-Probe]](http://i.ytimg.com/vi/RWJWwPAR9Ho/mqdefault.jpg)
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***NOTE This video incorrectly states that the needle of the compass points to a magnetic north pole.
That is incorrect as the GEOGRAPHIC NORTH POLE is actually the MAGNETIC SOUTH POLE disregarding magnetic variance or declination.
This is a very common mistake and is actually incorrect in many texts and on many websites. Think of the compass needle as the "Geographic North Seeking Pole" of the compass magnet.
Vaguely remembering that before I shot this video I looked it up online only to find some of the incorrect websites. Only later when I built a polarity detector did I find my mistake. DIY polarity detector ua-cam.com/video/5NTch0j1gts/v-deo.html