Magnetic sensor

High quality magnetic sensor from Lanbao International Company
 It is used to probe the magnetic field, either as a probe to give an indication of the presence or absence of the field.
It is used in various industrial applications.
Working principle: When a magnet is brought close to the sensor sensor, it changes the state of the sensor, as if it is normally open, it becomes normally closed, and vice versa. These sensors are available in different polarities: npn, pnp