Looking to expand your Plugwise network to do more than just monitor appliance energy consumption? With the Scan Zigbee Wireless Light and Motion Detector you can do just that. The sensor will aid in energy conservation by recognizing when someone is in a room and then automatically turning the lights on and then off once the room is empty. Another benefit to the Light and Motion Detector is that it can provide insight into home or building occupancy. Because it detects people the Scan will provide data showing how often people are in a given room and send this information to the Plugwise network. This will then offer the owner an overview of which rooms are used more than others as well as how often. The Scan will communicate with the nearest Circle in Plugwise ZigBee network. While the Light and Motion Detector is great for use with room lighting it can also be used with other appliances that do not need to be on when no one is around such as a printer or computer. This product is powered by 1 AA battery which is included with purchase. It is important to note that this product requires an existing Plugwise network to be setup in order for use.