Watt Stopper EW outdoor motion sensors provide occupancy based control of outdoor lighting. Rain tight and rated for -40F to 130F, EW sensors perform reliably in all weather conditions. EW sensors operate at 24 VDC and are mounted onto a standard, outdoor junction box. Utilizing advanced PIR technology, the sensors detect the difference between infrared energy in motion and the background space to turn lighting on when a person or vehicle enters the coverage area. After the area is vacated and the time delay elapses, lighting automatically turns off. The EWs dual PIR detectors and three level lens increase the detection density as well as the accuracy of motion detection.