The occupancy sensor market was valued at USD 2.2 billion in 2019 and is projected to reach USD 3.6 billion by 2025; it is expected to grow at a CAGR of 13.3% from 2020 to 2025. Occupancy sensors are widely used in applications such as lighting, HVAC, and security and surveillance systems. They are now being integrated into consumer electronics such as PC.


Occupancy sensors are based on primarily 3 types of technologies—passive infrared, ultrasonic, and dual technology, which is a combination of passive infrared and ultrasonic. There are also other emerging types of occupancy sensors, including Doppler sensor, which is similar to radar sensors, RF sensors, and microwave-based occupancy sensor.


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One of the major reasons for the adoption of occupancy sensors is its growing demand for energy-efficient devices in various industries (residential buildings and commercial buildings). In addition, energy saving is considered to be among the most important factors for the development of occupancy sensors in the market. Applications such as lighting control, HVAC systems, and security surveillance mainly utilize occupancy sensors to reduce the level of energy consumption.


Connecting an occupancy sensor with other control systems such as lighting control systems and HVAC control systems occasionally creates problems. This is mainly due to incompatibility issues when an occupancy sensor working on certain wireless protocol is connected to a lighting and HVAC control system working on another wireless protocol. For instance, if an internet-enabled system uses ZigBee technology to communicate with smart control systems and if all the lighting devices are connected to a common network, then the entire network needs to be integrated with a similar wireless technology that is compatible. It has been observed that the lighting industry, at present, lacks a unified approach when it comes to wireless connectivity.


Energy efficiency to achieve reduced carbon emissions and energy consumption has become one of the major priorities of many countries. The governments in the US, Canada, and Mexico have always been promoting green environment, which has resulted in a large number of smart homes in North America. Over the past few years, the governments of European countries have also been taking initiatives to adopt energy-efficient measures across the region. Regulations stated by the government are in favor of home automation systems. The governments in China, India, Japan, and South Korea are also supporting digitization and eco-friendly measures to a considerable extent. The awareness regarding the adverse effects of global warming further drives the usage of automated home energy management systems. Such government initiatives will aid in the growing trend of smart home and smart home lighting control system, which includes occupancy sensors.