DIY Magnet Pole Tester Hall Effect Sensor

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DIY battery powered Magnet Pole Tester. I lost the AMY6 Magnet Tester I purchased so I decided to just build one. A circuit diagram is in the video.

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Materials:
APX9141 Hall Effect Sensor,
3V Battery,
Red LED,
Blue LED,
Momentary Pushbutton Switch,
Breadboard, 
56 Ohm Resistor,
Hookup Wire,