Features This module provides versatile infrared sensing system solutions for automation machine devices. When the object is in the detection range, the infrared ray will be reflected with high intensity, the module emits a high level, and the indication diode is on. Widely used for electricity meter pulse data sampling, fax paper detection, obstacle detection, black and white line detection. It uses a TCRT5000 infrared reflection sensor whose infrared emitting diodes constantly emit infrared rays. When the emitted infrared ray is not reflected or the intensity is not high enough, the infrared receiving tube is in the off state and the module emits a low level, while indicating that the diode is off. Specification: Detection reflection range: 1mm to 25mm Operating voltage: 5 V. Output form: digital signal (0 and 1) PCB size: 3.5 x 1 cm/1.4 x 0.4 inches. Weight: 8g/0.3oz (approx.) Wiring Method: VCC: Positive power supply (5V) GDN: negative power supply OUT: high/low level on-off signal (digital signal 0 and 1) Package list: 3 x infrared tracking sensor modules. Package List