
photoelectric sensor
A photoelectric sensor is a device that detects the presence or absence of an object using light, typically a laser or LED. It works by emitting a beam of light towards a target; when the object interrupts or reflects the beam, the sensor detects this change. This technology is commonly used in automation systems, such as counting products on a conveyor belt or ensuring objects are in the correct position. It’s reliable, fast, and contactless, making it ideal for precise detection in various industrial and safety applications.