This is an infrared distance switch. It has an adjustable detection range, 3cm - 80cm. It is small, easy to use/assemble, and inexpensive. Useful for robotics, interactive media, industrial assembly line, etc.
- Power supply: 5V.
- Range:3-80cm adjustable.
- Red: +5V; Yellow:Signal;Green:GND.
If you need more information, please visit the web page Wiki of the product.