Liberty Brightview Light Kit - 10981 - 2 Wands - Motion Activated Sensor With Adjustable Shutoff Timer - Easy To Install - Includes Push Pins And Batteries - Highly Efficient For Longer Battery Life Light activated Motion activated sensor with adjustable shutoff timer Easy to install. Includes push pins and batteries Highly efficient for longer battery life - 10981 Alerts occur when battery is low Customer or dealer installed (not installed at the factory)