The Wattstopper pw301w is an occupancy motion sensor that uses passive infrared (pir) technology. Its a wall switch with multiway control and it features proprietary neutral sense technology for optional wiring in two or three wire applications. This PW-301-W comes in white. This Wattstopper occupancy sensor provides energy savings through the use of automatic on/off control of your lights within your home. It cuts on when adequate ambient light is not present and small to large movements within a room are detected. Best of all, multiple sensors may be used for control of one or more loads from up to four locations. This occupancy sensor is an ideal replacement for your standard wall switches because it provides energy savings and fits into standard decorator style wall plates. This sensor features high sensitivity and dense coverage for an exceptional performance. Wattstoppers neutral sense technology guarantees proper operation in any installation. This technology lets installers decide whether or not they need a neutral connection. An optional neutral connection is included with break off tabs to expose the neutral terminals for this purpose. Because the sensors work for two or three wire applications, this device is compatible with existing wiring without any special Configured guration. The Wattstopper pw301w also has the ability to be coupled with line voltage wall switches for multilevel lighting. This Wattstopper motion sensor is a great choice for retrofit applications including conference rooms, offices, break rooms and utility rooms. It can help to reduce your energy consumption up to 60 in the room it is installed in. Best of all, the Wattstopper pw301w motion sensor in white is backed by a five year manufacturers warranty and is UL and CUL listed.