VISION.NET Occupancy sensors provide energy saving lighting controls for your facility. Sensors easily integrate into any VISION.NET architectural control system, providing direct control of VISION.NET compatible dimmers and low voltage relay switching systems. The VISION.NET Photocell Daylighting Sensor is a low-voltage daylighting sensor that measures changes in ambient light and controls its connected lighting loads according to the user’s programming. The unit is able to decipher minor changes in light levels (such as passing cloud cover, intermittent shadowing, etc.) to prevent unwanted or inadvertent light cycling.