Dual-technology occupancy and vacancy sensors monitor most any area within a building. The in-wall and ceiling-mount units are Title 20 compliant and can contribute to LEED credits. Using zero-crossing technology to suppress in-rush current impact, the sensors are said to provide reliable on/off sensing no matter the lighting technology. Features include adjustable PIR sensitivity, 15 sec. to 30 min. time delay, and an adjustable ambient light sensor override.