Magnetism Hall Sensor Module for Arduino 
with on board sensitivity adjustment

This listing is for a magnetism (hall effect) sensor module with on board sensitivity adjustment.  The output is normally high (5v), and goes low (0v) when it detects a magnetic field.   It is very similar to the module in the video below, but it does not have the same pinout, and is not black in colour.  This module can detect magnetism and the output reacts when a magnet is placed closely to the sensor (As seen in the below video)  .You can adjust the detection sensitivity by adjusting the on board multi-turn variable resistor.  If you have any questions, please do not hesitate to ask!  The interface line descriptions are listed and described below!

Interface Pins:
VCC - Supply line.  Connect 5v here.
GND - DC ground line
OUT - This is your output line.  You connect this line to an input on your arduino, or other digital circuit!
If you have any questions, let me know.