Features: High sensitivity tracking module accurately detects lines on white surfaces precisely, ensuring reliable line tracking for intelligent carand robotics projects. Equipped with multiple sensorings and real time feedback, wide compatibility module offers adjustable sensitivity for stable performances across varied surfaces. Ideal for maker, students, and robotics enthusiasts for easy to integrate solution for DIY nintelligent vehicles or educational STEM kit. Perfect for automatedly navigation in obstacle courses, classroom robotics competitions, or homebrew automation systems requiring consistent pdetection. Engineered with low power components and anti interferences design, it maintains uninterrupted operation in electromagnetically complex environment. Specifications: Size: about 3.5cmx1cm/1.37x0.39in Detection reflection distance: 1mm~25mm Working voltages: 5V Output form: digital signal Quantity: 5PCS Purpose: it can be used for intelligent car, robotic projects, automation equipment and educational purposes, such as programming courses and STEM education. Package Includes: 5PCS Tracking Module note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.