Non-Dispersive Infrared (NDIR) Market

Non-Dispersive Infrared (NDIR) Market Size, Market Forecast and Outlook By FMI

The non-dispersive infrared (ndir) market was valued at USD 488.5 million in 2025. The market is set to reach USD 520.7 million by 2026-end and grow at a CAGR of 6.6% between 2026-2036 to reach USD 986.7 million by 2036. Carbon Dioxide (CO₂) will dominate with a 54.2% share, while HVAC will lead with a 49.7% share.

Summary of the Non-Dispersive Infrared (NDIR) Market

• Demand and Growth Drivers
  • Indoor air quality monitoring mandates in commercial buildings, schools, and healthcare facilities are creating structured demand for NDIR CO2 sensors integrated into building ventilation and HVAC control systems.
  • Industrial safety regulations requiring continuous gas monitoring for CO2, methane, and other hazardous gases in confined spaces and process environments sustain procurement of NDIR sensor modules and fixed gas detection systems.
  • Environmental monitoring applications, including greenhouse gas measurement, automotive emissions testing, and atmospheric research, provide premium revenue segments for high accuracy NDIR analyzer systems.
• Product and Segment View
  • Carbon Dioxide (CO2) holds 54.2% of the Gas Type segment in 2026, reflecting the dominant application of NDIR technology for CO2 measurement in building ventilation, industrial safety, and environmental monitoring.
  • Sensors account for 52.7% of the Product Type segment, reflecting the primary product form in which NDIR technology is sold to OEM equipment manufacturers and system integrators for incorporation into gas detection and monitoring devices.
  • Industrial and Manufacturing at 38.6% of the End User segment reflects the primary end use industry driving NDIR sensor procurement and deployment.
• Geography and Competitive Outlook
  • South Korea leads growth at 6.9% CAGR through 2036, reflecting domestic scale and expanding infrastructure that supports adoption.
  • USA at 6.8% reflects sustained demand from established procurement channels and favorable regulatory conditions.
  • Companies with leading product portfolios, established institutional relationships, and multi regional commercial capability maintain the strongest competitive positions.
• Analyst Opinion
  • Sudip saha, Principal Consultant at FMI says, 'NDIR sensor manufacturers that can deliver higher accuracy CO2 and multi gas detection in smaller, lower power packages will capture the largest share of the expanding indoor air quality and industrial safety monitoring markets. The convergence of building automation, occupational safety regulation, and environmental monitoring is creating sustained demand for NDIR sensing technology that rewards suppliers with broad gas detection portfolios and application engineering capability.'
  • The non-dispersive infrared (ndir) market is moving toward more structured procurement and supply chain relationships.
  • Adoption is increasing as regulatory requirements and commercial benchmarks evolve.
  • Supportive demand from evolving standards in North America, Europe and East Asia.

Key Takeaways, Market Size, and Forecast

• The non-dispersive infrared (ndir) market was valued at USD 488.56 million in 2025.
• By 2036, the Non-Dispersive Infrared (NDIR) Market is expected to be worth USD 986.72 million.
• From 2026 to 2036, the market is projected to expand at a CAGR of 6.6%.
• The market is projected to create an incremental opportunity of USD 465.98 million between 2026 and 2036.
• In 2026, Carbon Dioxide (CO₂) is expected to account for 54.2% of the Gas Type, driven by established accuracy and reliability of NDIR CO2 sensing technology in building ventilation control, industrial safety monitoring, and environmental measurement applications.
• South Korea (6.9%) and USA (6.8%) are two of the fastest growing markets in the world.

Non-Dispersive Infrared (NDIR) Market Definition

The non-dispersive infrared market encompasses optical gas sensing components, modules, and systems that use infrared light absorption to detect and measure gas concentrations. Product categories include NDIR sensors, analyzers, and complete gas detection systems for CO2, methane, CO, refrigerant, and hydrocarbon measurement applications.

Non-Dispersive Infrared (NDIR) Market Inclusions

Market scope covers all commercially traded products categorized by Gas Type, Application, End User, Technology, Product Type, Deployment Type. Revenue sizing spans the 2026 to 2036 forecast period and includes NDIR components, modules, and systems sold through OEM, distributor, and direct channels.

Non-Dispersive Infrared (NDIR) Market Exclusions

The scope does not include FTIR spectroscopy systems, photoacoustic gas detectors, electrochemical gas sensors, or catalytic bead gas sensors that use non NDIR detection principles.

Non-Dispersive Infrared (NDIR) Market Research Methodology

• Primary Research: FMI analysts conducted interviews with manufacturers, specialists, and participants across key markets.
• Desk Research: Combined industry databases, regulatory filings, publications, and manufacturer disclosures.
• Market Sizing and Forecasting: Bottom up aggregation across segments, applications, and regions with adoption curve modeling.
• Data Validation: Cross checked quarterly against statistics, trade data, and reported figures.

Why is the Non-Dispersive Infrared (NDIR) Market Growing?

• Post-pandemic, building code adoption of CO2 monitoring requirements for indoor air quality and ventilation adequacy has accelerated, creating structured procurement demand for NDIR sensors in commercial and institutional building management systems.
• Industrial safety regulations requiring continuous atmospheric monitoring in confined spaces, manufacturing environments and oil and gas operations maintain baseline demand for NDIR gas detection equipment.
• Growth is led by South Korea (6.9%) and the USA (6.8%), which means investment in building automation, industrial safety enforcement, and expansion of environmental monitoring programs.

The non-dispersive infrared (NDIR) market is growing owing to the increasing demand for reliable gas detection technology in various applications including indoor air quality, industrial safety, and environmental monitoring. Carbon dioxide measurement has the maximum share of 54.2% in the gas type segment as carbon dioxide is the most widely measured gas using NDIR technology in the building ventilation, occupational safety and environmental applications. Detection applications for methane, carbon monoxide, refrigerant gases and hydrocarbons use the same underlying NDIR sensing principle.

Building automation is the largest and fastest growing application segment. Post pandemic building codes and green building certification standards (LEED, WELL, BREEAM) are increasingly requiring continuous CO2 monitoring as a proxy for ventilation adequacy and occupant density. Each monitored zone in a commercial building has one or more NDIR CO2 sensors, so the volume demand is directly linked to commercial building construction and retrofit activity.

Trends in sensor technology include miniaturization, lower power consumption and better measurement accuracy. Compact NDIR sensor modules with digital output interfaces allow them to be integrated into portable devices, IoT sensor nodes and consumer grade air quality monitors, extending the addressable market beyond traditional industrial and building automation applications. Multi gas NDIR sensors from a single optical path can sense multiple gas species and are being adopted in applications requiring multiple gas monitoring in a compact form factor.

Market Segmentation Analysis

• The major Gas Type is Carbon Dioxide (CO2), accounting for 54.2%.
• Product Type segment represents 52.7% of Sensors.
• Industrial & Manufacturing at 38.6% of End User segment is based on functional preferences.

Non-dispersive Infrared (NDIR) Market, By Gas Type, By Application, By End User, By Technology, By Product Type, By Deployment Type

Insights into the Carbon Dioxide (CO₂) Gas Type Segment

Gas Type will be dominated by Carbon Dioxide (CO₂) in 2026, with 54.2%. This shows continuing demand where carbon dioxide (co2) has been consistently performing. Sub segments separate out specifications and pricing. Reliability, compliance and quality are the basis for purchasing decisions.

Insights into the Sensors Product Type Segment

Sensors accounts for 52.7 percent of the Product Type segment. Markets are expanding and standardization is helping grow markets. Buyers are worried about performance, cost and support.

Non-Dispersive Infrared (NDIR) Market Drivers, Restraints, and Opportunities

• Regulatory frameworks create structured demand for compliant products.
• Cost constraints and supply limitations present margin risks.
• Application expansion creates incremental growth opportunities.

The non-dispersive infrared (ndir) market is shaped by regulatory mandates, shifting requirements, and competitive dynamics.

Indoor Air Quality Regulation and Building Code Adoption

Demand is shaped by expanding building code requirements for indoor air quality monitoring, particularly CO2 measurement as a ventilation adequacy indicator. Post pandemic awareness of airborne disease transmission risk has accelerated regulatory adoption of continuous CO2 monitoring in schools, offices, healthcare facilities, and public buildings across North America, Europe, and East Asia.

Semiconductor Gas Sensor Competition

Growth is constrained by competitive pressure from lower cost semiconductor metal oxide gas sensors that provide adequate performance for some consumer and IoT applications at price points below NDIR technology. While NDIR maintains accuracy and stability advantages, price sensitive applications may adopt semiconductor alternatives that reduce the addressable market for NDIR components.

Industrial Safety Enforcement and Confined Space Monitoring

Adoption is increasing due to strengthened occupational safety enforcement requiring continuous atmospheric monitoring in confined spaces, underground mining, oil and gas operations, and chemical processing facilities. Fixed and portable NDIR gas detection equipment procurement is driven by regulatory compliance requirements that specify continuous monitoring of specific gas concentrations.

Environmental Monitoring and Emissions Measurement

Growth reflects expanding environmental monitoring programs for greenhouse gas measurement, automotive emissions testing, and industrial stack monitoring. High accuracy NDIR analyzers serve these applications where measurement precision and long term stability are regulatory requirements that justify premium instrument pricing.

Analysis of Non-Dispersive Infrared (NDIR) Market By Key Countries

Country	CAGR
USA	6.8%
UK	6.4%
EU	6.5%
Japan	6.2%
South Korea	6.9%

• South Korea leads with 6.9% CAGR through 2036.
• USA at 6.8% demonstrates sustained demand.
• UK (6.4%) reflects steady demand.

The global non-dispersive infrared (ndir) market is projected to grow at 6.6% CAGR from 2026 to 2036, covering more than 30 countries.

Demand Outlook for Non-Dispersive Infrared Market in the United States

The United States is expected to grow at 6.8% CAGR through 2036. US demand is anchored by building automation code adoption of CO2 monitoring requirements in commercial buildings, OSHA confined space atmospheric monitoring mandates for industrial facilities, and EPA air quality monitoring programs that collectively create structured procurement for NDIR sensor modules and analyzer systems.

• Building code CO2 monitoring requirements create structured procurement demand.
• OSHA confined space mandates sustain industrial gas detection equipment procurement.
• EPA air quality programs drive high accuracy analyzer procurement.

Future Outlook for Non-Dispersive Infrared Market in the United Kingdom

The United Kingdom is expected to grow at 6.4% CAGR through 2036. Post pandemic building ventilation guidance from HSE and UKHSA, combined with Part F Building Regulation updates that increasingly reference CO2 monitoring as a ventilation adequacy indicator, are driving NDIR sensor integration into UK commercial building management systems.

• HSE ventilation guidance drives CO2 monitoring adoption in workplaces.
• Part F Building Regulation updates reference CO2 monitoring for ventilation assessment.
• Industrial HSE compliance sustains gas detection equipment procurement.

Opportunity Analysis of Non-Dispersive Infrared Market in the European Union

The European Union is expected to grow at 6.5% CAGR through 2036. EU Energy Performance of Buildings Directive (EPBD) revision incorporating indoor environmental quality parameters, combined with member state implementation of CO2 monitoring requirements in schools and public buildings, is creating a regulatory driven growth framework for NDIR sensor deployment across the European built environment.

• EPBD revision incorporates indoor environmental quality monitoring requirements.
• Member state school CO2 monitoring mandates create volume sensor demand.
• F-Gas Regulation enforcement drives refrigerant leak detection sensor procurement.

In-depth Analysis of Non-Dispersive Infrared Market in Japan

Japan is expected to grow at 6.2% CAGR through 2036. Japan's building management technology sophistication and energy efficiency culture sustain demand for NDIR CO2 sensors in HVAC demand controlled ventilation systems, with industrial gas monitoring requirements in chemical and manufacturing facilities providing complementary demand for multi gas detection equipment.

• Building management technology sophistication sustains NDIR sensor integration demand.
• Energy efficiency driven demand controlled ventilation requires CO2 sensor input.
• Chemical and manufacturing facility gas monitoring sustains industrial equipment demand.

Sales Analysis of Non-Dispersive Infrared Market in South Korea

South Korea is expected to grow at 6.9% CAGR through 2036. South Korea's Smart Building certification programs and Ministry of Environment indoor air quality regulations mandate CO2 monitoring in public facilities and commercial buildings, creating structured procurement demand for NDIR sensors, while industrial safety enforcement in chemical and electronics manufacturing sustains process gas monitoring equipment procurement.

• Smart Building certification mandates CO2 monitoring in commercial buildings.
• Ministry of Environment IAQ regulations require monitoring in public facilities.
• Electronics and chemical manufacturing safety sustains industrial gas detection demand.

Competitive Landscape and Strategic Positioning

• Siemens AG maintains the strongest position through capability and portfolio breadth.
• Amphenol Advanced Sensors, Senseair AB (Asahi Kasei Group), Honeywell International Inc. compete through specialization and expertise.
• Emerging players focus on niche applications and differentiation.

Siemens AG holds the strongest competitive position through technical capability, established relationships, and portfolio breadth.

Amphenol Advanced Sensors, Senseair AB (Asahi Kasei Group), Honeywell International Inc. compete through specialized capabilities, application expertise, and targeted strategies.

Barriers to entry include technical expertise, regulatory compliance, established relationships, and capital requirements.

Strategic priorities include cost optimization, geographic expansion, portfolio extension, and customer retention investment.

Key Companies in the Non-Dispersive Infrared (NDIR) Market

Key global companies leading the non-dispersive infrared (ndir) market include:

• Siemens AG, Amphenol Advanced Sensors, Senseair AB (Asahi Kasei Group), Honeywell International Inc. maintain strong positions through integrated capabilities.
• Teledyne Technologies Inc., ELT Sensor Co., Ltd., Dynament Ltd. compete through regional specialization.
• Cubic Sensor and Instrument Co., Ltd., Figaro Engineering Inc., Gas Sensing Solutions Ltd. (GSS), Other Key Players are establishing presence through niche focus.

Competitive Benchmarking: Non-Dispersive Infrared (NDIR) Market

Company	Sensor Technology	Gas Detection Range	OEM Integration	Application Support
Siemens AG	High	High	Strong	Global
Amphenol Advanced Sensors	High	High	Strong	Global
Senseair AB (Asahi Kasei Group)	High	High	Strong	Global
Honeywell International Inc.	Medium	High	Moderate	Global
Teledyne Technologies Inc.	Medium	Medium	Moderate	Regional
ELT Sensor Co., Ltd.	Medium	Medium	Moderate	Regional
Dynament Ltd.	Low	Medium	Low	Regional
Cubic Sensor and Instrument Co., Ltd.	Low	Medium	Low	Niche
Figaro Engineering Inc.	Low	Medium	Low	Niche
Gas Sensing Solutions Ltd. (GSS)	Low	Medium	Low	Niche

Source: Future Market Insights competitive analysis, 2026.

Key Developments in Non-Dispersive Infrared (NDIR) Market

• In 2025, Siemens AG continued to position its gas‑sensing portfolio, including NDIR‑based sensors, as part of its industrial automation and environmental‑monitoring solutions in key markets.
• In 2025, Amphenol Advanced Sensors advanced its product portfolio in the NDIR sensor space to meet rising global demand for gas detection and air‑quality monitoring solutions.

Key Players in the Non-Dispersive Infrared (NDIR) Market

Major Global Players

• Siemens AG
• Amphenol Advanced Sensors
• Senseair AB (Asahi Kasei Group)
• Honeywell International Inc.
• Teledyne Technologies Inc.
• ELT Sensor Co., Ltd.
• Dynament Ltd.

Emerging Players/Startups

• Cubic Sensor and Instrument Co., Ltd.
• Figaro Engineering Inc.
• Gas Sensing Solutions Ltd. (GSS)
• Other Key Players

Report Scope and Coverage

Parameter	Details
Quantitative Units	USD 520.74 million to USD 986.72 million, at a CAGR of 6.6%
Market Definition	The non-dispersive infrared (ndir) market encompasses commercially traded products categorized by Gas Type, Application, End User, Technology, Product Type, Deployment Type.
Regions Covered	North America, Latin America, Europe, East Asia, South Asia and Pacific, Middle East and Africa
Countries Covered	USA, UK, EU, Japan, South Korea, 30 plus countries
Key Companies Profiled	Siemens AG, Amphenol Advanced Sensors, Senseair AB (Asahi Kasei Group), Honeywell International Inc., Teledyne Technologies Inc., ELT Sensor Co., Ltd., Dynament Ltd., Cubic Sensor and Instrument Co., Ltd., Figaro Engineering Inc., Gas Sensing Solutions Ltd. (GSS), Other Key Players
Forecast Period	2026 to 2036
Approach	Hybrid bottom up and top down methodology starting with verified transaction data, projecting adoption velocity across segments and regions.

Segmentation

Non-Dispersive Infrared (NDIR) Market Segmented by Gas Type:

• Carbon Dioxide (CO₂)
  • Indoor Air Quality Monitoring
  • HVAC Emission Control
• Hydrocarbons
  • Methane Detection
  • VOC Monitoring Systems
• Carbon Monoxide (CO)
  • Toxic Gas Detection
  • Industrial Safety Monitoring
• Others
  • Refrigerant Gases
  • Multi-Gas Environmental Monitoring

Non-Dispersive Infrared (NDIR) Market Segmented by Application:

• HVAC
  • Building Ventilation Control
  • Energy Efficiency Systems
• Monitoring
  • Industrial Gas Monitoring Systems
  • Environmental Air Quality Monitoring
• Detection and Analysis
  • Leak Detection Systems
  • Process Gas Analysis

Non-Dispersive Infrared (NDIR) Market Segmented by End User:

• Industrial and Manufacturing
  • Factory Emission Monitoring
  • Process Control Systems
• Oil and Gas
  • Pipeline Gas Detection
  • Refinery Safety Systems
• Environmental
  • Air Quality Monitoring Agencies
  • Climate & Pollution Control Systems
• Automotive and Transportation
  • Cabin Air Quality Sensors
  • Emission Testing Systems
• Medical
  • Respiratory Gas Monitoring Devices
  • Anesthesia Gas Analysis
• Chemicals
  • Chemical Leak Detection
  • Industrial Process Safety
• Food Processing and Storage
  • CO₂ Storage Monitoring
  • Food Preservation Atmosphere Control
• Others
  • Research Laboratories
  • Smart Building Systems

Non-Dispersive Infrared (NDIR) Market Segmented by Technology:

• Single-Gas NDIR Sensors
  • Dedicated CO₂ Sensors
  • Single-Parameter Gas Monitoring
• Multi-Gas NDIR Sensors
  • Simultaneous Gas Detection Systems
  • Integrated Environmental Sensors
• Dual-Wavelength NDIR
  • Compensation-Based Detection Systems
  • High-Accuracy Industrial Sensors

Non-Dispersive Infrared (NDIR) Market Segmented by Product Type:

• Sensors
  • Portable NDIR Sensors
  • Fixed Gas Detection Sensors
• Analyzers
  • Gas Concentration Analyzers
  • Industrial Process Analyzers
• Transmitters
  • Wireless Gas Transmitters
  • Smart Monitoring Devices

Non-Dispersive Infrared (NDIR) Market Segmented by Deployment Type:

• Fixed Systems
  • Industrial Fixed Gas Monitors
  • Building HVAC Integration Systems
• Portable Systems
  • Handheld Gas Detectors
  • Field Testing Equipment
• Wearable Devices
  • Personal Safety Gas Monitors
  • Worker Protection Devices

Non-Dispersive Infrared (NDIR) Market by Region:

• North America
  • USA
  • Canada
  • Mexico
• Latin America
  • Brazil
  • Chile
  • Rest of Latin America
• Western Europe
  • Germany
  • UK
  • Italy
  • Spain
  • France
  • Nordic
  • BENELUX
  • Rest of Western Europe
• Eastern Europe
  • Russia
  • Poland
  • Hungary
  • Balkan & Baltic
  • Rest of Eastern Europe
• East Asia
  • China
  • Japan
  • South Korea
• South Asia and Pacific
  • India
  • ASEAN
  • Australia & New Zealand
  • Rest of South Asia and Pacific
• Middle East & Africa
  • Kingdom of Saudi Arabia
  • Other GCC Countries
  • Turkiye
  • South Africa
  • Other African Union
  • Rest of Middle East & Africa

Research Sources and Bibliography

• 1. International Organization for Standardization. (2025). ISO 16000: Indoor Air Quality Measurement Standards. ISO.
• 2. Occupational Safety and Health Administration. (2025). OSHA Confined Space Atmospheric Monitoring Requirements. OSHA.
• 3. European Commission. (2024). EU Energy Performance of Buildings Directive: Indoor Air Quality Monitoring. EC.
• 4. USA Environmental Protection Agency. (2025). EPA Air Quality Monitoring Methods and Standards. EPA.
• 5. International Electrotechnical Commission. (2025). IEC 62368: Gas Detection Equipment Safety Standards. IEC.

This bibliography is provided for reader reference. The full Future Market Insights report contains the complete reference list with publication dates, URLs, and supporting data for all cited works.

This Report Addresses

• Estimating market size and revenue from 2026 to 2036.
• Segmentation by product, application, end use, and region.
• Insights about more than 30 regional markets.
• Technology, manufacturing, and supply chain analysis.
• Competitive landscape assessment.
• Investment opportunity identification.
• Supply chain and distribution analysis.
• Data delivery in PDF and Excel formats.