Global Gas Sensor Market Size & Outlook, 2026-2033

The global gas sensor market size was estimated at USD 3,257.5 million in 2025 and is projected to reach USD 6,390.4 million by 2033, growing at a CAGR of 8.8% from 2026 to 2033.
Revenue, 2025 (US$M)
$3,257.5
Forecast, 2033 (US$M)
$6,390.4
CAGR, 2026 - 2033
8.8%
Report Coverage
Worldwide

Global gas sensor market highlights

  • The global gas sensor market generated a revenue of USD 3,257.5 million in 2025 and is expected to reach USD 6,390.4 million by 2033.
  • The market is expected to grow at a CAGR (2026 - 2033) of 8.8% by 2033.
  • In terms of segment, carbon dioxide (co2) sensors accounted for a revenue of USD 1,118.8 million in 2025.
  • Nitrogen Oxide (NOx) Sensors is the most lucrative product segment registering the fastest growth during the forecast period.
  • In terms of region, Asia Pacific was the largest revenue generating market in 2025.
  • Country-wise, Mexico is expected to register the highest CAGR from 2026 to 2033.

Global data book summary

Market revenue in 2025USD 3,257.5 million
Market revenue in 2033USD 6,390.4 million
Growth rate8.8% (CAGR from 2026 to 2033)
Largest segmentCarbon dioxide (co2) sensors
Fastest growing segmentNitrogen Oxide (NOx) Sensors
Historical data covered2021 - 2024
Base year for estimation2025
Forecast period covered2026 - 2033
Quantitative unitsRevenue in USD million
Market segmentationOxygen (O2)/Lambda Sensors, Carbon Dioxide (CO2) Sensors, Carbon Monoxide (CO) Sensors, Nitrogen Oxide (NOx) Sensors, Methyl Mercaptan Sensor

Other key industry trends

  • In terms of revenue, the North America accounted for 27.3% of the global gas sensor market in 2025.
  • By country, the U.S. is projected to lead the global market in terms of revenue in 2033.
  • By country, Mexico is the fastest growing regional market and is projected to reach USD 228.8 million by 2033.

Carbon dioxide (co2) sensors was the largest segment with a revenue share of 34.35% in 2025. Horizon Databook has segmented the Global gas sensor market based on oxygen (o2)/lambda sensors, carbon dioxide (co2) sensors, carbon monoxide (co) sensors, nitrogen oxide (nox) sensors, methyl mercaptan sensor covering the revenue growth of each sub-segment from 2021 to 2033.


Various types of combustible and toxic gases used in industrial processes, such as H2S (Hydrogen Sulfide), NO2 (Nitrogen Dioxide), and others pose a high risk for workers in the vicinity. Therefore, it is important to continuously monitor the concentration of these gases in industrial environments to avoid mishaps.

The demand for gas sensors in order to ensure occupational health and safety is on the rise across numerous industry verticals, such as process and manufacturing industries. Regulatory initiatives in the developed markets of North America and Europe concerning the use of gas sensors are expected to favorably impact the market over the forecast period.

This can be attributed to the effectiveness of these devices in monitoring gas leakages and ensuring the safety and health of workers in hazardous work environments. Agencies and legislation promoting the use of gas sensors at the workplace include Occupational Safety and Health Administration (OSHA) that ensures safe and healthy work conditions for men and women in the U.S. and the Health and Safety at Work Act (HSWA) that focuses on occupational health and safety in the UK.

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Gas Sensor Market Companies

Name Profile # Employees HQ Website
GfG Instrumentation View profile 51-100 Ann Arbor, Michigan, United States, North America https://goodforgas.com
Dynament View profile - Mansfield, Nottinghamshire, United Kingdom, Europe https://www.dynament.com/
City Technology Ltd. View profile - Portsmouth, New Hampshire, United States, North America https://www.citytech.com
Figaro View profile 1-10 Arlington Heights, Illinois, United States, North America https://figarosensor.com
Nemoto & Co. View profile 11-50 Tokyo, Tokyo, Japan, Asia https://www.nemoto.co.jp/
Robert Bosch Engineering & Business Solutions View profile 10001+ Bangalore, Karnataka, India, Asia http://www.bosch-india-software.com
Teledyne Technologies Inc View profile 14900 1049 Camino Dos Rios, Thousand Oaks, CA, United States, 91360-2362 https://www.teledyne.com
Siemens AG View profile 321000 Werner-von-Siemens-Strabe 1, Munich, BY, Germany, 80333 https://www.siemens.com
ABB Ltd View profile 108700 Affolternstrasse 44, Zurich, Switzerland, 8050 https://www.abb.com

Global gas sensor market size, by regions, 2021-2033 (US$M)

Top 10 countries: Gas sensor market size, 2025 (US$M)

Global gas sensor market share, by product, 2025 & 2033 (%, US$M)

Gas sensor market: Opportunity assessment by country

Global gas sensor market, by region, 2025 (US$M)

Global gas sensor market size, by regions, 2021-2033 (US$M)

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