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Learn about Occupancy Sensor

Occupancy Sensor

Occupancy sensors determine indoor activity within a room and automatically turn lights on and off. There are ultrasonic detectors that detect sound, infrared detectors that detect heat and motion, and combination detectors.

Consider the type of sensor you want. Infrared sensors work best in small enclosed spaces with a high level of movement. Ensure that it is installed in a location where it will detect activity in all parts of the room. Infrared energy travels in straight lines and is absorbed by walls, so the sensor needs to be in a direct, unobstructed line of sight to where the activities happen in the room. Ultrasonic sensors are great for detecting minor motion and don't require a unobstructed line of sight. Consider a occupancy sensor for task specific lighting, such as over over the sink when washing dishes. Be aware that animals in your home will trigger the occupancy sensor.

You can save money and lower emissions by having lights turn off automatically when not in use.

Occupancy sensors in office washrooms have spawned stories of people getting stuck doing their business in the dark, because the light turned off and the sensor couldn't detect movement inside the stall. Don't let it happen to you! Install your occupancy sensors where they can detect occupancy.