QTR-8RC is a reflectance sensor array but intended as a line sensor

. It can be used as a general-purpose proximity IR or reflectance sensor. The device has 8 pairs of IR LED and Phototransistor mounted on a 9.525 mm pitch.

• No analog to digital conversion requires
• Improved sensitivity over voltage-divider analog output
• Parallel reading of multiple sensors is possible
• Operating voltage : 3.3 to 5V
• Sensing distance : 3mm