Occupancy Sensing Controls

Occupancy sensing controls include a family of devices that can be used to control lighting, room HVAC units and office equipment although their primary use to date has been in lighting. Occupancy sensors operate by sensing the presence of people in their control area and turning equipment on and off accordingly. Occupancy sensors have become quite sophisticated and include multiple sensing technologies such as heat (infrared) and sound sensing to avoid false switching when occupants are working quietly. T hey also include time delay and sensitivity settings in order to adjust their operation to the occupancy patterns in the space.

Power Strip Occupancy Sensor

Occupancy sensors are available in a range of styles including wall- and ceiling-mounted devices. They are particularly effective controls in low-use rooms or areas with erratic occupancy hours. The table below presents an estimate of the annual energy cost savings that could be achieved by installing occupancy sensors on lighting systems in various areas.

Source: U.S. Department of Energy

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