Chemical Sensors Market Size and Share

Chemical Sensors Market (2025 - 2030)
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Chemical Sensors Market Analysis by Mordor Intelligence

The chemical sensors market size reached USD 27.26 billion in 2025 and is forecast to climb to USD 36.81 billion by 2030, reflecting a 6.19% CAGR over the period. Sweeping air-quality laws, miniaturized biosensing in point-of-care devices, and hydrogen safety regulations are raising global demand. Electrochemical platforms still dominate toxic-gas detection because they achieve parts-per-million accuracy at low power draw. Optical architectures, particularly non-dispersive infrared carbon dioxide monitors, are gaining traction as replacements for catalytic beads in confined spaces. Investment in automated refineries and battery gigafactories continues to favor multi-sensor modules that combine combustible, oxygen, and toxic gas channels on a single board. Meanwhile, printed and flexible sensors are transitioning from pilot-scale to high-volume roll-to-roll lines, bringing sub-USD1 wireless tags within reach for food-safety and athletic-performance markets.

Key Report Takeaways

  • By product type, electrochemical sensors led with a 32.89% share of the chemical sensors market in 2024, while optical sensors are expected to advance at a 7.27% CAGR to 2030.
  • By technology, MEMS-based sensors led with a 27.56% share of the chemical sensors market in 2024, while printed/flexible sensors are expected to advance at a 7.19% CAGR to 2030.
  • By application, industrial safety and process control accounted for a 43.87% share of the chemical sensors market in 2024, and medical diagnostics is expected to expand at a 7.49% CAGR through 2030.
  • By analyte phase, gas phase accounted for 62.17% share of the chemical sensors market in 2024, and liquid-phase sensing is projected to grow at a 6.91% CAGR between 2025 and 2030.
  • By geography, North America held 47.12% share of the chemical sensors market in 2024, while the Asia-Pacific region is forecast to log the fastest CAGR of 7.21% from 2024 to 2030.

Segment Analysis

By Product Type: Electrochemical Platforms Anchor Safety While Optical Architectures Gain Share

Electrochemical cells captured 32.89% of 2024 revenue and remain the preferred route for hydrogen-sulfide, carbon-monoxide, and nitrogen-dioxide alarms in refineries and wastewater plants. Optical devices are expanding at a 7.27% CAGR through 2030 as operators migrate toward non-dispersive infrared heads that extend maintenance intervals beyond 24 months. 

Catalytic-bead sensors, once a staple for combustible gas, are slipping below 18% share because intrinsic-safety rules encourage ignition-free optics. Semiconductor metal-oxide devices, now 22% of demand, dominate budget indoor-air applications where sub-USD 5 price points matter. Infrared spectroscopy upgrades in natural-gas pipeline inspection push parts-per-billion methane detection and are a key reason optical traction is accelerating. U.S. methane-reduction incentives add a USD 280 million annual pull for these modules. Electrochemical single-gas badges still rule personal protective gear because electrolyte depletion drives repeat sales and predictable replacement cycles, keeping the chemical sensors market robust in consumables revenue.

Chemical Sensors Market: Market Share by Product Type
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By Technology: MEMS Integration Trims Cost While Printed Sensors Target Disposables

MEMS variants delivered 27.56% of 2024 revenue by slipping sensing elements and mixed-signal ASICs onto 5 mm silicon dies. Wafer-level packaging slashes assembly overhead and has pulled retail air-quality monitors under USD 50. Printed and flexible formats are logging a 7.19% CAGR as roll-to-roll gravure drops unit cost to USD 0.10 for single-use biosensing strips, opening new frontiers in athletics and decentralized medicine. 

CMOS-integrated units, currently 19% share, add on-chip calibration that pares bill-of-materials by 30%. Infrared blocks represent about 21% of demand, serving HVAC, incubators, and greenhouses where optical lifetime exceeds a decade. Surface-acoustic-wave lines, roughly 13% share, stay in niche defense roles for chemical warfare agent alerts, but standardization work on shock and vibration tests is making them more attractive in transport safety. ISO 27891 now requires MEMS gas chips to survive 1,500 g shock with no drift, a hurdle most mainline suppliers have cleared, shoring up confidence in automotive and industrial buyers.

By Application: Industrial Safety Leads While Medical Diagnostics Posts Fastest Expansion

Industrial safety and process control generated 43.87% of 2024 revenue thanks to mandatory multi-gas arrays in confined spaces and continuous emission systems on petrochemical stacks. Medical diagnostics is registering the fastest 7.49% CAGR as payers expand coverage for continuous glucose monitoring and emergency departments adopt point-of-care lactate cards. 

Environmental monitoring contributes 16% by value through city air-quality grids and water-utility discharge testing. Automotive exhaust and cabin air modules, about 12% share, march toward real-time nitrogen-oxides reporting to meet Euro 7 and China 7 rules. Oil and gas upstream and refining uses, now 11% of turnover, rely on waterproof electrochemical hydrogen-sulfide cells at wellheads and flare stacks to keep OSHA exposure within 10 ppm. Defense contracts, 6% share, focus on trace explosives and warfare agents, reinforcing demand for high-sensitivity surface-acoustic-wave and colorimetric papers. The transition toward value-based healthcare makes remote metabolic monitoring a reimbursable necessity, sustaining double-digit biosensor shipments.

Chemical Sensors Market: Market Share by Application
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By Analyte Phase: Gas Detection Dominates Revenue While Liquid Sensing Gains From Water Quality Mandates

Gas detection holds 62.17% of 2024 sales, underpinned by industrial-safety badges, ambient air stations, and hydrogen infrastructure diagnostics. Liquid-phase probes are growing at 6.91% CAGR because utilities must track lead, nitrate, and phosphate at tighter thresholds after the 2024 U.S. drinking-water rule update. 

Solid-phase sensing, 8% share, remains the tool of analytical labs checking soil contamination or tablet dissolution. New hydrogen codes stipulate electrochemical or catalytic detection at 1,000 ppm within one second, intensifying gas-cell R&D. The European Drinking Water Directive inserted per- and polyfluoroalkyl substances at nanogram levels, fueling aptamer-based electrochemical innovations. Aquaculture pilots show dissolved-oxygen and ammonia telemetry cuts fish mortality by up to 18%, indicating another vector for liquid-phase upside in the chemical sensors market.

Geography Analysis

North America generated 47.12% of 2024 revenue, a lead built on strict OSHA confined-space laws and Medicare expansion that added 3.2 million glucose-monitoring beneficiaries. The 2024 PM2.5 standard drove a USD 340 million sensor retrofit wave, and Canada earmarked CAD 180 million (USD 133 million) to extend ozone and particulate networks into remote communities. 

Europe contributed 28% of sales; its shift to Euro 7 exhaust norms mandates ±10% accuracy across -40-85 °C, generating steady orders for electrochemical and solid-state stacks. Germany carved EUR 500 million (USD 565 million) for hydrogen stations that each need redundant sub-second detectors, while the United Kingdom cut the formaldehyde limit to 0.3 ppm, spurring upgrades across laboratories. 

Asia-Pacific is projected to outpace all regions at a 7.21% CAGR through 2030. China’s 1,800-node air network and factory VOC rules, India’s Source Emission Monitoring rollout, and Japan’s hydrogen-fuel road map combine to unlock multi-billion-dollar tenders. South Korea’s semiconductor VOC law adds another USD 85 million annual pull. Middle East and Africa and South America remain smaller slices but are moving toward national gas-pipeline safety laws that hinge on infrared methane trackers, creating long-tail opportunities for local integrators.

Chemical Sensors Market CAGR (%), Growth Rate by Region
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Competitive Landscape

Most of 2024's revenue was attributed to the top five suppliers, confirming moderate fragmentation. Incumbents manage end-to-end verticals, including electrochemical cell winding, MEMS wafer runs, and infrared optics, which enables gross margins above 45%. 

Honeywell’s USD 300 million Mexicali buildout will push volumes for gigafactory hydrogen-fluoride arrays, while Siemens folded Sensirion’s industrial gas line into its SIMATIC platform following a EUR 85 million (USD 96 million) deal. Software-led calibration is the new differentiator: AI drift compensation extends service intervals to 180 days and trims ownership cost for budget-sensitive warehouses. Alphasense filed 14 patents in 2024 on nanostructured electrodes that sharpen detection limits by an order of magnitude. 

Cloud partnerships also rose; Sensirion added native hooks into AWS IoT Core and Azure IoT Hub so customers mine sensor fleets for predictive insights. Regulation acts as both a moat and a catalyst for firms with in-house IECEx and IVDR labs onboard, new analytes faster, yet niche specialists can win on turnaround speed for third-party test services. Overall, strategic emphasis is tilting toward hydrogen safety, indoor-air mandates, and medical biosensing.

Chemical Sensors Industry Leaders

  1. Alphasense Limited

  2. Figaro Engineering Inc.

  3. Membrapor AG

  4. Sensirion AG

  5. Aeroqual Limited

  6. *Disclaimer: Major Players sorted in no particular order
Chemical Sensor Market Concentration
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Recent Industry Developments

  • October 2025: Bosch Sensortec launched mass production of a MEMS formaldehyde sensor line at its Dresden 300 mm fab, targeting smart-home and automotive cabin-air applications with unit costs below USD 3.
  • August 2025: Alphasense Limited rolled out a cloud-based predictive-calibration suite that extends field maintenance intervals for electrochemical toxic-gas sensors from 90 days to 180 days, with pilot deployments across 12 European chemical plants.
  • March 2025: Sensirion AG started commercial shipments of its 10 mm × 10 mm miniaturized electrochemical CO₂ sensor, delivering an initial lot of 50,000 units to three ventilator and anesthesia equipment OEMs.
  • January 2025: Honeywell International began construction of its USD 300 million Mexicali, Mexico expansion, adding fully automated assembly lines for hydrogen-fluoride, ammonia, and silane detectors to serve battery gigafactories and semiconductor fabs.

Table of Contents for Chemical Sensors Industry Report

1. INTRODUCTION

  • 1.1 Study Assumptions and Market Definition
  • 1.2 Scope of the Study

2. RESEARCH METHODOLOGY

3. EXECUTIVE SUMMARY

4. MARKET LANDSCAPE

  • 4.1 Market Overview
  • 4.2 Impact of Macroeconomic Factors
  • 4.3 Industry Value Chain Analysis
  • 4.4 Regulatory Landscape
  • 4.5 Technological Outlook
  • 4.6 Market Drivers
    • 4.6.1 Stringent Environmental Regulations Driving Demand For Industrial Gas Detection
    • 4.6.2 Growing Adoption Of Miniaturized Electrochemical Sensors In Medical Diagnostics
    • 4.6.3 Expansion Of Industrial Automation And Process Safety Systems
    • 4.6.4 Emergence Of Flexible Printed Chemical Sensors for Disposable IoT Devices
    • 4.6.5 Integration Of Chemical Sensors into Hydrogen Infrastructure Safety Systems
    • 4.6.6 Rapid Proliferation Of Indoor Air Quality Mandates In Commercial Real Estate
  • 4.7 Market Restraints
    • 4.7.1 Calibration And Maintenance Costs Limit Adoption In Cost-Sensitive Industries
    • 4.7.2 Sensor Drift And Limited Lifespan Affect Long-Term Reliability
    • 4.7.3 Supply Chain Bottlenecks For Specialty Electrochemical Catalysts
    • 4.7.4 Data Governance Concerns Slowing Deployment Of Cloud-Connected Sensors
  • 4.8 Porter’s Five Forces Analysis
    • 4.8.1 Threat of New Entrants
    • 4.8.2 Bargaining Power of Buyers
    • 4.8.3 Bargaining Power of Suppliers
    • 4.8.4 Threat of Substitutes
    • 4.8.5 Competitive Rivalry

5. MARKET SIZE AND GROWTH FORECASTS (VALUE)

  • 5.1 By Product Type
    • 5.1.1 Electrochemical Sensors
    • 5.1.2 Optical Sensors
    • 5.1.3 Pellistor/Catalytic Bead Sensors
    • 5.1.4 Semiconductor Sensors
    • 5.1.5 Other Product Type
  • 5.2 By Technology
    • 5.2.1 CMOS-Integrated Sensors
    • 5.2.2 MEMS-Based Sensors
    • 5.2.3 NDIR and Infrared Sensors
    • 5.2.4 SAW and Acoustic Sensors
    • 5.2.5 Printed/Flexible Sensors
  • 5.3 By Application
    • 5.3.1 Industrial Safety and Process Control
    • 5.3.2 Environmental Monitoring
    • 5.3.3 Medical Diagnostics
    • 5.3.4 Automotive Emissions and Cabin Air
    • 5.3.5 Oil and Gas Exploration and Refining
    • 5.3.6 Homeland Security and Defense
    • 5.3.7 Other Application
  • 5.4 By Analyte Phase
    • 5.4.1 Gas Phase
    • 5.4.2 Liquid Phase
    • 5.4.3 Solid Phase
  • 5.5 By Geography
    • 5.5.1 North America
    • 5.5.1.1 United States
    • 5.5.1.2 Canada
    • 5.5.1.3 Mexico
    • 5.5.2 Europe
    • 5.5.2.1 Germany
    • 5.5.2.2 United Kingdom
    • 5.5.2.3 France
    • 5.5.2.4 Italy
    • 5.5.2.5 Rest of Europe
    • 5.5.3 Asia-Pacific
    • 5.5.3.1 China
    • 5.5.3.2 Japan
    • 5.5.3.3 India
    • 5.5.3.4 South Korea
    • 5.5.3.5 Australia
    • 5.5.3.6 Rest of Asia-Pacific
    • 5.5.4 Middle East and Africa
    • 5.5.4.1 Middle East
    • 5.5.4.1.1 Saudi Arabia
    • 5.5.4.1.2 United Arab Emirates
    • 5.5.4.1.3 Rest of Middle East
    • 5.5.4.2 Africa
    • 5.5.4.2.1 South Africa
    • 5.5.4.2.2 Egypt
    • 5.5.4.2.3 Rest of Africa
    • 5.5.5 South America
    • 5.5.5.1 Brazil
    • 5.5.5.2 Argentina
    • 5.5.5.3 Rest of South America

6. COMPETITIVE LANDSCAPE

  • 6.1 Market Concentration
  • 6.2 Strategic Moves
  • 6.3 Market Share Analysis
  • 6.4 Company Profiles (includes Global Level Overview, Market Level Overview, Core Segments, Financials as Available, Strategic Information, Market Rank/Share for Key Companies, Products and Services, and Recent Developments)
    • 6.4.1 Alphasense Limited
    • 6.4.2 Figaro Engineering Inc.
    • 6.4.3 Membrapor AG
    • 6.4.4 Sensirion AG
    • 6.4.5 Aeroqual Limited
    • 6.4.6 SGX Sensortech Limited
    • 6.4.7 Nemoto & Co., Ltd.
    • 6.4.8 SPEC Sensors, LLC
    • 6.4.9 Sensitron S.r.l.
    • 6.4.10 NTM Sensors
    • 6.4.11 Dynament Limited
    • 6.4.12 City Technology Limited
    • 6.4.13 Gas Sensing Solutions Ltd.
    • 6.4.14 Zhengzhou Winsen Electronics Technology Co., Ltd.
    • 6.4.15 Sensorix GmbH
    • 6.4.16 DD-Scientific Ltd.
    • 6.4.17 SST Sensing Ltd.
    • 6.4.18 Crowcon Detection Instruments Limited
    • 6.4.19 PureAire Monitoring Systems, Inc.
    • 6.4.20 Aeroqual Limited (repeat for completeness)

7. MARKET OPPORTUNITIES AND FUTURE OUTLOOK

  • 7.1 White-Space and Unmet-Need Assessment
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Global Chemical Sensors Market Report Scope

The Chemical Sensors Market Report is Segmented by Product Type (Electrochemical Sensors, Optical Sensors, Pellistor/Catalytic Bead Sensors, Semiconductor Sensors, Other Product Type), Technology (CMOS-Integrated Sensors, MEMS-Based Sensors, NDIR and Infrared Sensors, SAW and Acoustic Sensors, Printed/Flexible Sensors), Application (Industrial Safety and Process Control, Environmental Monitoring, Medical Diagnostics, Automotive Emissions and Cabin Air, Oil and Gas Exploration and Refining, Homeland Security and Defense, Other Application), Analyte Phase (Gas Phase, Liquid Phase, Solid Phase), and Geography (North America, Europe, Asia-Pacific, Middle East and Africa, South America). The Market Forecasts are Provided in Terms of Value (USD).

By Product Type
Electrochemical Sensors
Optical Sensors
Pellistor/Catalytic Bead Sensors
Semiconductor Sensors
Other Product Type
By Technology
CMOS-Integrated Sensors
MEMS-Based Sensors
NDIR and Infrared Sensors
SAW and Acoustic Sensors
Printed/Flexible Sensors
By Application
Industrial Safety and Process Control
Environmental Monitoring
Medical Diagnostics
Automotive Emissions and Cabin Air
Oil and Gas Exploration and Refining
Homeland Security and Defense
Other Application
By Analyte Phase
Gas Phase
Liquid Phase
Solid Phase
By Geography
North America United States
Canada
Mexico
Europe Germany
United Kingdom
France
Italy
Rest of Europe
Asia-Pacific China
Japan
India
South Korea
Australia
Rest of Asia-Pacific
Middle East and Africa Middle East Saudi Arabia
United Arab Emirates
Rest of Middle East
Africa South Africa
Egypt
Rest of Africa
South America Brazil
Argentina
Rest of South America
By Product Type Electrochemical Sensors
Optical Sensors
Pellistor/Catalytic Bead Sensors
Semiconductor Sensors
Other Product Type
By Technology CMOS-Integrated Sensors
MEMS-Based Sensors
NDIR and Infrared Sensors
SAW and Acoustic Sensors
Printed/Flexible Sensors
By Application Industrial Safety and Process Control
Environmental Monitoring
Medical Diagnostics
Automotive Emissions and Cabin Air
Oil and Gas Exploration and Refining
Homeland Security and Defense
Other Application
By Analyte Phase Gas Phase
Liquid Phase
Solid Phase
By Geography North America United States
Canada
Mexico
Europe Germany
United Kingdom
France
Italy
Rest of Europe
Asia-Pacific China
Japan
India
South Korea
Australia
Rest of Asia-Pacific
Middle East and Africa Middle East Saudi Arabia
United Arab Emirates
Rest of Middle East
Africa South Africa
Egypt
Rest of Africa
South America Brazil
Argentina
Rest of South America
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Key Questions Answered in the Report

What is the current Chemical Sensor Market size?

The Chemical Sensor Market is projected to register a CAGR of 7.51% during the forecast period (2025-2030)

Who are the key players in Chemical Sensor Market?

Smiths Detection Inc., General Electric Co., MSA Safety Incorporated, Pepperl+Fuchs Group and Honeywell International Inc. are the major companies operating in the Chemical Sensor Market.

Which is the fastest growing region in Chemical Sensor Market?

Asia-Pacific is estimated to grow at the highest CAGR over the forecast period (2025-2030).

Which region has the biggest share in Chemical Sensor Market?

In 2025, the North America accounts for the largest market share in Chemical Sensor Market.

What years does this Chemical Sensor Market cover?

The report covers the Chemical Sensor Market historical market size for years: 2019, 2020, 2021, 2022, 2023 and 2024. The report also forecasts the Chemical Sensor Market size for years: 2025, 2026, 2027, 2028, 2029 and 2030.

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