It's a TCRT5000 Line Tracker Module. This Infrared reflective sensor TCRT5000 adjustable sensitivity using a potentiometer. This is high quality line tracker module which have detection range 1mm to 8m. It's operating voltage is 3.3v to 5v.
|Detection of reflection distance||1mm to 8m|
|Operating Voltage||3.3V - 5V|
|Output||Both Digital and Analog|