The TOPGREENER TDODS5-120-W is a motion sensor switch with dimming. The switch automatically turns lights ON and OFF based on the motion detected in a room. An easy replacement for any indoor light switch, the PIR motion sensor automates your lighting to bring your home into the modern age. The PIR sensor has a 180 field of view and is best suited for spaces up to 1200 square feet. The mode, sensor range, and time delay can all be adjusted with simple controls located under the face cover of the device. The switch has two modes: Occupancy (OCC) and Vacancy (VAC). In occupancy mode, lights are automatically turned ON when you enter a room and automatically turned OFF after the room is vacant. Alternatively, vacancy mode requires the light switch to be turned ON manually, but it will shut OFF automatically after the room is vacant for a time. In addition to occupancy and vacancy modes, the auto-light switch also features a full-control dimmer that can be easily operated with the top and bottom buttons of the device. Dimming helps to conserve energy and gives offers more control over your lighting. The sensor switch will also help you conserve energy by ensuring the light is never left on by mistake. This motion-sensing wall switch is ideal for rooms that are used frequently, such as a living room, conference room, bedroom, or office. This device is cUL listed, CA Title 24 compliant, and includes a one-year warranty.