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PerfectSense Sensors is a product line of occupancy sensors developed and manufactured by Nexlight, a California-based lighting control systems company. These sensors are designed to provide reliable and accurate motion detection, enabling automatic control of lighting and HVAC systems in various commercial and residential settings. PerfectSense Sensors use passive infrared (PIR) technology to detect motion and heat signatures within their field of view. They are available in a range of configurations, including ceiling-mount, wall-mount, and fixture-mount options, to suit different installation requirements. Some models also offer additional features such as daylight harvesting, which adjusts lighting levels based on the amount of natural light available in a room. Overall, PerfectSense Sensors are intended to provide energy savings and improve the comfort and convenience of building occupants. NexLight Lighting Controls is part of the Northport Engineering group, a company that has been in existence since 1954. Through the years, NexLight has evolved from a division of Honeywell to what it is today - the industry leader in extreme reliability low-voltage lighting control systems.