The reflective-object-sensor (ROS) X3 board is based on the Fairchild QRE1113GR Reflective Object Sensor. The ROS X3 module provides sensing of near objects and/or surface reflection for a wide variety of applications. Each of the three sensors incorporates an infrared LED as the reflected light source.

The ROS modules from Circuit Monkey are available in two models, a single sensor and triple sensor. This single sensor is well suited for applications such as near object sensing and motion limit sensing. The triple sensor is well suited for line-following, velocity and direction measurement.

Sensor board kits and bundles are also available:

For more information download the user's guide.