An occupancy sensor is an indoor device used for detecting the presence of a person by using infrared, ultrasonic, microwave, or other technology. Applications include temperature, ventilation, and lighting systems that automatically adapt based on the number of people in the room. They typically save energy, provide automatic control, and comply with building codes. The increasing incorporation of Internet of Things (IoT) technology as well as the increased demand for smart building technologies are providing lucrative market growth opportunities for occupancy sensor.