Infrared obstacle sensor

This module can be used to detect black or white line by robots. Detection distance is adjustable via a potentiometer. This sensor contains two LED indicators. M.(6*2)

• Shipping: 
• Return Policy: 1)if the product has any manufacturers error or broken . 2)If the package has another product you order it .
  1)if the product has any manufacturers error or broken .<br>2)If the package has another product you order it .<br>