This is photoelectric sensor. The detection distance can be adjusted. The sensor is easy to assemble, easy to use for robot obstacle avoidance, and can be widely used in many occasions. Made of nice material, durable in use. Lightweight, easy to carry and use. Features - Color: Multi -Material:ABS,electronic components - Size: 45.00X2.20X2.20cm/17.68X0.86X0.86in - Output current: 100mA/5V - Current consumption: <25mA - Response time: <2 ( ) - Effective distance: 3-80cm adjustable -Accurate distance measurement: provides precise distance measurement between objects and the sensor. -Adjustable sensitivity: allows for easy adjustment of the sensor sensitivity to meet specific requirements in different environments. -Stable performance: built with nice materials, ensuring stable sensor performance. -User-friendly design: easy installation and usage without the need for additional tool. -Versatile uses: ideal for , car, automation equipment, and various other fields. Package list: 2 x photoelectric switches