TCRT5000 Line follower

Module features:
Using infrared reflection sensors TCRT5000
Test reflection distance: 1mm to 25mm
Clean and 3, the comparator output, signal waveform,driving ability is strong, for more than 15 ma.
With many adjustable precision potentiometer to adjust sensitivity
The working voltage of 3.3V to 5V
Output form: digital switch output (0 and 1)
Has a fixed bolt hole, convenient installation
Small board PCB size: 3.2cm x 1.4cm
The LM393, use of wide voltage comparator
Size:3.1x1.3cm(approx)