This is a multipurpose infrared sensor which can be used for obstacle sensing, line sensing, etc. and also as an encoder sensor. The sensor provides a digital output (1 or 0). The sensor outputs a logic one (+5V) at the digital output when an object is placed in front of the sensor and logic zero (5V), when there is no object in front of the sensor - 0V   An onboard LED is used to indicate the presence of an object.

NSK OBSTACLE Detecter  - Microcontroller based 

•  IR Based Obstacle Detecter  - Dimension 2.6cmx1.5cm  
•  Adjustable Range with POT
•  Operating Voltage 5v
•  Sesitivity upto - 50cm  -Adjustable
•  Logic output -1/0 -5v
•  Application - Industrial safety devices