Sensor is applicable in classrooms, conference rooms, museums, office spaces and low-use spaces. It uses passive infrared (PIr) sensing technology. It is convenient and easy solution for facility to eliminate that wasted energy, by automatically turning off lighting loads when a room is empty. The low-profile, sleek sensors can be installed anywhere in facility to provide uninterrupted, 24/7/365 operation, without affecting the look and beauty of their surroundings.