It can be used in many applications such as RPM sensor (for counting the number of shaft revolutions), Robot speed and distance measurements, door switch and robot arm position sensor. This module can be used to detect the presence of an magnetic field. The Hall Effect Magnetic and Proximity Sensor Module can be used to detect the presence (or absence!) of nearby objects such as magnets. This sensor accepts a GND and +5V supply, and has a single digital output which goes low (GND) when a magnetic field is detected.

The linear sourcing output voltage is set by the supply voltage and varies in proportion to the strength of the magnetic field. It has a reduced current consumption of only 6 mA typically at 5 Vdc help make this sensor energy efficient.

Features:

3144 hall sensor

Features wide range voltage comparator LM393

Signal output indicator

Power: 2.3V ~ 5.3V