New Crestron Green Light occupancy sensors optimize energy usage

January 28, 2009 Crestron has released a new range of occupancy sensors to enhance the functionality of its Green Light™ environmental controls, further reducing energy usage. The sensors have built-in microprocessors and photocells which continually analyze and adjust to changing conditions to significantly reduce on-time for lights. Climate and device control can also be integrated. A combination of both ultrasonic and passive infrared sensing is used to detect motion while minimizing false triggers, such as electrical noise, air currents, and temperature changes. A built-in photocell can override the occupancy sensor if ambient light levels are above a set threshold, preventing lights from turning on when there is sufficient daylight in the room.

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