Features 1.This is a set of transmitter and receiver in one of the photoelectric sensor 2.A detection distance can be adjusted according to the requirements 3.The sensor has a detection distance, visible interference by small, easy to assemble, easy to use 4.Can be widely used in robot obstacle avoidance, line piece and many occasions 5.Application: The production line of automatic counting equipment goods; Multi-reminder; Maze Robot Specification Features: This is a set of transmitter and receiver in one of the photoelectric sensor. A detection distance can be adjusted according to the requirements. The sensor has a detection distance, visible interference by small, easy to assemble, easy to use. Can be widely used in robot obstacle avoidance, line piece and many occasions. Application: The production line of automatic counting equipment goods; Multi-reminder; Maze Robot Specifications: Model: E18-D80NK Electrical characteristics: U: 5VDC I: 100mA Sn: 3-80cm Size: Diameter: 18mm / 0.71in Sensor Length: 45mm / 1.77in Lead Length: 73cm / 28.7in Weight: 28g Package included: 1 x Infrared Sensor Switch Package List