The SensaDimmer includes motion-sensing technology, automatically turning lights on when you enter a room and off when you leave. Perfect for garages and pantries. Perfect for garages and pantries, this dimmer switch allows for both manual and automatic motion-activated control. Using motion-sensing technology, it automatically turns lights on when you enter a room, and off when you leave. With manual control, you can even adjust to your preferred light level with the subtle built-in slider. Use on its own to control an incandescent or halogen light or fixture from a single location, or pair with a second Motion Sensor Dimmer to use as a remote dimmer switch for control of a single light source from two locations. This Motion Sensor Dimmer is meant for single fixtures and small lighting groups that do not exceed 700W.