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Vacancy Sensor
In-Depth Product Guide

Vacancy Sensor

FAQs
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Vacancy sensors determine when there is no activity in the room and automatically turn off the lights. The lights must be manually turned on. 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 an unobstructed line of sight. Consider an occupancy sensor for task-specific lighting, such as over the sink when washing dishes. Vacancy sensors work well for families with children or pets.

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

Vacancy sensors in office washrooms have spawned stories of people getting stuck in the dark because the vacancy sensor couldn't detect the person once they went into a stall. Don't let it happen to you! Install your vacancy sensors where they can detect the presence of a person.