A smart occupancy sensor switch is a device that is designed to detect the presence of people in a room or space. It uses infrared or ultrasonic sensors to detect movement and then triggers a switch to turn on or off a light, fan, or other electrical device. Smart occupancy sensor switches are becoming increasingly popular in homes and businesses as they provide a convenient and energy-efficient way to control lighting and other electrical devices. Smart occupancy sensor switches can be programmed to turn on or off lights and other devices based on the presence of people in the room, and they can also be used to dim lights or adjust fan speeds. Smart occupancy sensor switches are a great way to save energy and money, as they can be programmed to turn off lights and other devices when no one is in the room, and they can also be used to adjust the brightness or speed of a fan or light based on the number of people in the room. Smart occupancy sensor switches are an easy and cost-effective way to improve energy efficiency and comfort in any space.