The Line Tracking Sensor 5 Channel Module uses 5 TCRT5000 infrared line tracking sensors with an onboard comparator, LED indicators and other signal conditioning components. Because of the 5 mounted sensors, you don't need to worry about detection speed. Also, it has an anti-interference feature. This feature prevents visible light from getting in the way of line detection. Specifications: Voltage supply: 3.3V/5V Operating temperature: -40° - + 85 ° Model Number: TCRT5000