Digital Output Hall-effect sensor
Operating Voltage: 5V
Output Current: 25mA.
It can be used to detect both the poles of a magnet

Hall Magnetic Sensors are 3144 Series Hall principle of Hall effect switch IC, using technology to produce magnetic semiconductor integrated circuit, which is determined by the voltage regulator, Hall voltage generator, differential amplifier, Schmidt trigger, temperature compensation circuit, and the collector electrode open-circuit output stage consisting of the magnetic sensing circuit, the input for the magnetic flux density, the output is a digital voltage signal.