Gas Sensor Market - By Product, By Technology, By Connectivity, By Application - Global Forecast, 2026 - 2035

Gas Sensor Market Size

The global gas sensor market was valued at USD 2.9 billion & volume at 56,449.3 thousand units in 2025. The market is expected to grow from USD 3.2 billion in 2026 to USD 7.2 billion in 2035, at a CAGR of 9.6% & volume CAGR of 10.2% during the forecast period according to the latest report published by Global Market Insights Inc.

Several factors contribute to the augmentation of the market, including the increased sensor integration within end use sectors, the surging need for self-driving vehicles, the rising requirements for air quality surveillance devices in smart cities, the rapid integration of cloud computing and the Internet of Things (IoT), and the growing government regulations and initiatives.
 

One of the most significant factors driving the market is the increase in the need for air quality surveillance devices in smart cities. An example of this trend is the Biden Administration's plan to distribute inexpensive air pollution and CO₂ sensors to more than 300 cities in the U.S. by 2023. These sensors enable cities to monitor and manage pollutants to meet regulatory requirements and protect the health of the population. This trend oriented towards public health and the protection of the environment stimulates the market for cheaper, more reliable, and innovative gas sensing technologies.
 

The gas sensor market is witnessing tremendous growth due to ongoing developments in the Internet of Things (IoT) and cloud computing, which optimizes the collection and analysis of data in real-time. As an illustration, the U.S. Department of Energy states that there are 645 active landfill-gas-to-energy projects across 48 states, all of which are using gas quality sensors integrated in real-time to manage the engine in an energy generation system. This integration streamlines the system and conforms to regulatory requirements.
 

Between 2022 and 2024, the market witnessed considerable growth, increasing from USD 2.4 billion in 2022 to USD 2.7 billion in 2024. The gas sensor industry is witnessing increased miniaturization and sensitive gas sensors because of the rapid growth of nanotechnology and microelectromechanical (MEMS) technologies. These technologies enable the construction of compact and powerful sensors, which are most suitable for wearable, portable, and other confined applications where traditional sensors wouldn't be applicable. Additionally, their increased sensitivity allows the sensors to detect one or more target gases (or other gases) that wouldn't otherwise be detectable, which is crucial for the industry in meeting environmental regulations more effectively. This is most relevant in the gas sensors used in industrial safety, environmental monitoring, or healthcare. Winsen’s new sensor which could detect gases such as methane, carbon monoxide and ammonia is primarily targeted to the gas sensor industry for the petroleum industry, mining, and chemicals.

Gas Sensor Market Trends

• The shift toward multi-gas detection platforms has gained momentum since 2018. Over the last five years there has been dramatic increase in the purchase of multi-gas detection units from the primary gas detection market. This pattern in multi gas sales is likely to continue until the 2026 to 2028 window. Documentation provided by the EPA shows integrated units such as the Multiwarn II with 28 gas detection sensors providing the monitoring of CO2, CO, combustibles and other hazardous material providing the effective real time monitoring of the facilities of disparate industries. 
   
• The adoption of AI and machine learning in gas sensors has been transforming the industry since 2020, driven by the need for accuracy and reduced false alarms. with systems integrating the built in AI and machine learning allowing the systems to reduce and, in some instances, eliminate the false positive emissions. The automation of industry and the incorporation of AI in systems have led to a need for machine learning in detection systems to increase the accuracy of data received from the gas detection sensors to enable faster predictive behavior. This has been incorporated and enhanced with systems developed for the EPA, July 2023, Air Sensor QA Workshop collection in which, the monitoring of gas emissions incorporated the machine learning models in detection systems such as random forests and neural networks.
   
• The expansion of gas sensors into healthcare and indoor air quality (IAQ) monitoring has surged post-2020, due to COVID-19 pandemic air quality and patient safety concerns. Smart buildings and stricter IAQ regulations have illustrated growing demand for oxygen, CO₂ and VOCs monitoring sensors. There is an anticipated hospital and home sector adoption of advanced sensors for monitoring air quality in real time between 2026 and 2028. Gas sensors are needed in homes, hospitals and offices as indoor VOC concentrations are, according to the EPA, 10 times greater than outdoors.
   

Gas Sensor Market Analysis

The global gas sensor industry was valued at USD 2.4 billion and USD 2.5 billion in 2022 and 2023, respectively. The market size reached USD 2.9 billion in 2025, growing from USD 2.7 billion in 2024.

Based on the product, the global gas sensor industry is divided into oxygen /lambda sensors, carbon dioxide sensors, carbon monoxide sensors, NOx sensors & others. The carbon dioxide sensors segment accounted for 32.2% of the market in 2025.

• Carbon dioxide sensors hold a significant market share in the market because of their industrial, environmental, and healthcare applications, carbon dioxide sensors continue to hold a large portion of the market share within gas sensors as they are used to assess air quality, emissions, and ventilation systems. 
   
• Improving sensors for accuracy, response time, and durability, as well as cost, and integrating tracking technologies, real time data, IoT, and AI for user-friendly systems, should be the objectives for manufacturers.
   
• The oxygen /lambda sensors segment was valued at USD 675.8 million in 2025 and is anticipated to grow at a CAGR of 9.4% over the forecast years. This segment is driven by the demand for emissions control in vehicles as well as tightening regulations and the important need for increased fuel efficiency in automotive, industrial, and environmental applications.
   
• There is an emphasis in the market for increased oxygen/lambda sensitivity. Response time, longevity, and calibration for different environments are important in achieving compliance for the market which is towards stricter regulations on emissions and fuel efficiency.
   

Based on the application, gas sensor market is classified into consumer electronics, healthcare, environmental, petrochemical, automotive, industrial, & others. The industrial segment dominated the market in 2025 with a market share of 38.5%.   
 

• Industrial organizations are increasingly concerned about improving worker safety, increased use of real-time gas leak detection, meeting compliance regulations, and using automated processes used in manufacturing, oil and gas (downstream and upstream) and chemical industries.
   
• Manufacturers need to be focused on providing the latest developments in gas detection technology, as well as demonstrating compliance with safety regulations and providing advancements in the Increased quality of gas sensor reliability for use in chemical, oil and gas and manufacturing applications.
   
• The automotive segment is expected to witness growth at a CAGR of 10.2% during the forecasted period, because of the increasing need for enhanced air quality monitoring, greater safety features, advanced use of gas sensors in emissions control automotive, electric vehicles (EV) and automated vehicle technologies.
   
• Manufacturers must focus on creating the best gas sensing technologies available to meet the needs of environmental controls for EV and automated vehicle technologies.
   

Based on technology, the gas sensor market is segmented into electrochemical, semiconductor, solid state, PID (photoionization detection), catalytic & infrared, & others. The electrochemical segment dominated the market in 2025 with a revenue of USD 887.5 million.
 

• The electrochemical segment's high sensitivity, low power requirements, and wide-ranging gases make it suitable for environmental monitoring, industry safety, and automotive applications.
   
• To fulfill the growing demand of the market, manufacturers should focus technological investments on the electrochemical segment, prioritizing improving the precision, promptness, and scope of the technologies in various applications in safety, healthcare, and environmental monitoring.
   
• The PID (photoionization detection) is anticipated to witness growth at a CAGR of 10% over the analysis period, reaching USD 1.9 billion by 2035.
   
• The PID segment's rapid growth can be attributed to their high sensitivity, rapid response speeds, and low maintenance requirements. They can detect a wide variety of volatile organic compounds (VOCs), which makes them ideal for a range of environmental and industrial applications.
   
• To meet the market demand, manufacturers should focus on the growth of the PID segment by improving their VOC detection capabilities, sensor precision, maintenance, and their industrial, environmental, and safety monitoring application scopes.
   

Based on the connectivity, the gas sensor market is segmented into wired & wireless. The wireless segment dominated the market in 2025 with a revenue of USD 2 billion.
 

• The wireless segment is driven by IoT technology, which offers remote monitoring, real-time data collection and transmission, and low monitoring hardware installation costs to environments and industries. The increased demand for smart, connected devices in various applications has also helped shape this segment.
   
• Firms should focus on growth in the wireless sector as they focus on developing IoT solutions and address concerns related to data security, energy efficiency, and other remote monitoring applications that span smart devices and real-time solutions for industrial safety.
   
• On the other hand, the wired segment is expected to witness growth at a CAGR of 10.6% during the forecasted period.
   
• The wired segment growth is attributed to stable and secure data transmission with low latency which is most cost-effective and suitable for applications where high dependability and constant observation is of utmost importance such as in the manufacturing and critical infrastructure industries.
   
• Firms should address growth in the wired segment by focusing on the stability of data transmission, the amount of security incorporated, reduction of costs associated with installation and extending the applications to critical infrastructure and to high dependability industries.
   

North America Gas Sensor Market

The North America dominated the global market with a market share of 32.6% in 2025.
 

The gas sensor market research report includes in-depth coverage of the industry with estimates and forecast in terms of revenue in USD Million & volume in Thousand Units from 2022 – 2035 for the following segments:

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Market, By Product         

• Oxygen /lambda sensors
• Carbon dioxide sensors
• Carbon monoxide sensors
• NOx sensors
• Others

Market, By Technology

• Electrochemical
• Semiconductor
• Solid State
• PID (photoionization detection)
• Catalytic
• Infrared
  • Thermal
  • Quantum
• Others

Market, By Connectivity

• Wired
• Wireless

Market, By Application

• Consumer electronics
• Healthcare
• Environmental
• Petrochemical
• Automotive
• Industrial
• Others

The above information is provided for the following regions and countries:

• North America
  • U.S.
  • Canada
• Europe
  • Germany
  • UK
  • France
  • Spain
  • Italy
  • Netherlands
• Asia Pacific
  • China
  • India
  • Japan
  • Australia
  • South Korea 
• Latin America
  • Brazil
  • Mexico
  • Argentina
• Middle East and Africa
  • South Africa
  • Saudi Arabia
  • UAE