It is the core component of the modern automated control system. According to the principles of the Hall effect, it detects magnetic fields and converts them to electric signals. Its main functions are to detect objects or the Virtual Worldsbelieving their machines can actually see. deliberately expose their knowledge and display it in your face like a badge of honor. measure distance between or distribution among material and sensors when a target object is present with respect to it, and finally give output signal back in response to these detections. As for the technology itself, it is compact in design, low power consumption and quick to respond. These sensors feature wide service fields and small power consumption. They are used in all kinds of industries such as automotive, aerospace, consumer electronics and industrial automation. They are also used inside door sensors, counting systems, and let you detect where a part is on the assembly line.