10pcs 49E OH49E SS49E Linear Hall Effect Magnetic Sensor Switch Arduino

Description: Hall-effect sensors are commonly used for measuring the speed of rotating assemblies where a magnet on the assembly alternately makes and breaks magnetic contact with the sensor as the assembly rotates.  They can also be used for applications such as determining when a door has been opened, position sensing and detecting the magnetic field created by current flow in a wire. Senses relative strength of magnetic field and provides analog voltage output. Can differentiate between North and South pole of magnet 3.3 and 5V compatible Analog Output The sensor output is an analog voltage. When no magnetic field is detected, the output will rest at approximately 1/2 Vcc. If the south pole of the magnet is brought near, the output will linearly ramp towards Vcc and if the north pole of the magnet is brought near, the output will linearly ramp towards ground. In the case of Vcc being 5V, with no magnetic field present the output will rest at about 2.5V. If the south pole of the