Photoelectric sensor: it is a set of transmission and reception in a photoelectric sensor. DC / SCR / Relay output current Control output: 100mA / 5V power supply. Professional tools: the photoelectric switch uses the blocking or reflection of the detected object on the beam, to detect the existence of the object. This photoelectric switch sensor features high precision, fast response, high reliability, and strong anti-interference ability. Widely Used: The photoelectric switch has a wide range of applications, can be widely used in robot obstacle avoidance, pipeline line part and many other automation products, detection objects are not limited to metal and all reflective light) objects can be detected. Design: The photoelectric switch converts the input current into a light signal on the transmitter, and the receiver detects the target object based on the intensity or presence of the received light. This photoelectric switch stays open and closes when it detects the object within the detection range.