huey has a sensor for adjusting your monitor's contrast according to ambient room lighting conditions. This helps the display look the same as light changes throughout the day.  huey measures the ambient light before profiling. It can also adjust your monitor's contrast at specified intervals, from every 10 sec. to 4 hrs.

For optimum ambient light adjustment, position your huey in its stand with the ambient light sensor facing in the same direction as the monitor screen. The ambient light sensor is on the same side as the indicator LEDs and logo.