水質センサー市場　2026-2036年

「水質センサー市場の規模、シェア、および傾向分析（パラメータ、タイプ、用途、地域別）—2036年までの世界予測」と題された最新の調査レポートによると、2025年の世界水質センサー市場の規模は30億米ドルでした。同市場は、2026年の推定32億8,000万米ドルから2036年には80億米ドルに成長し、予測期間（2026年～2036年）の年平均成長率（CAGR）は9.3%に達するとDataNext Researchでは予測しています。

この市場の力強い成長は、主に世界的な水質規制の強化、水不足の深刻化、そしてリアルタイムかつ継続的な水質監視への移行の加速によって牽引されています。水が戦略的に制約のある資源となる中、水源の保護から飲料水の処理、排水の放流に至るまで、水循環全体にわたって物理的、化学的、および生物学的なパラメータを正確に測定する能力は、公衆衛生、産業効率、そして環境の持続可能性にとって極めて重要になっています。さらに、産業用水の再利用に対する需要の高まりや、健全な生産量を確保するために精密な水質管理を必要とする世界的な水産養殖業の拡大も、市場の成長を後押ししています。

水質センサー市場の主なハイライト

• 世界の水質センサー市場は、2026年から2036年にかけて年平均成長率（CAGR）9.3%で推移し、2036年には80億米ドルに達すると予測されています。
• 2026年時点では北米が世界市場で最大のシェア（総収益の約30%）を占めています。これは、水質に関する厳しい規制、産業界からの需要、および強固な導入基盤に牽引されています。
• 測定項目別では、pHおよびORP（酸化還元電位）センサーが最大のセグメントとなっており、溶存酸素、導電率、濁度センサーがそれに続きます。
• タイプ別では、オンラインセンサーおよびインプロセスセンサーが最大のセグメントを占めています。これは、水質を継続的かつリアルタイムで監視する手法への移行を反映しています。
• 用途別では、自治体の上下水道処理が最大であり、産業用プロセス水および環境モニタリングがそれに続きます。
• PFAS（有機フッ素化合物）や鉛に関する要件を含む、飲料水および排水規制の強化が、モニタリング需要を押し上げています。
• 産業用水の再利用、プロセス制御、およびゼロ・リキッド・ディスチャージ（排水ゼロ）への取り組みが、オンライン水質センサーの需要を拡大させています。
• 水産養殖は急成長している用途の一つです。FAO（国連食糧農業機関）の報告によると、水産養殖の生産量が初めて天然漁獲量を上回っており、水質モニタリングの必要性が高まっています。
• 光学式センサーやメンテナンスの手間が少ないセンサー技術の導入により、校正コストや運用コストが低減され、採用が拡大しています。

世界の水質センサー市場は、測定項目（pH・ORP、溶存酸素、導電率、濁度、塩素・消毒剤、栄養塩・有機物、その他）、タイプ（オンライン・インプロセス、ポータブル、ラボ用）、用途（上下水道、産業用プロセス水、環境モニタリング、水産養殖、その他）、および地域別に区分されています。本調査では、業界の競合他社を対象に含めるとともに、国別の市場分析を行っています。

タイプ別では、2026年にはオンライン・インプロセスセンサーのセグメントが最大の市場シェアを占めると予想されています。このセグメントが優位にある背景には、業界全体で連続監視や自動プロセス制御への移行が進んでいることがあります。オンラインセンサーは水流に直接組み込まれ、飲料水処理施設、排水処理施設、さらには半導体製造のような高純度が求められる産業プロセスを管理する上で不可欠なリアルタイムデータを提供します。一方、ポータブルセンサーのセグメントも大幅な成長が見込まれています。これは、現場での環境モニタリングの拡大に加え、恒久的なインフラの設置が困難な遠隔地や養殖場において、迅速なオンサイト（現地）検査のニーズが高まっていることが要因です。

用途別では、2026年には自治体向けの上・下水処理セグメントが市場シェアの大部分を占めると予想されます。自治体の上・下水道インフラの規模が極めて大きいことや、飲料水の水質および排水の放流に関する厳格な健康・環境規制が存在することから、センサーに対する安定的かつ大量の需要が確保されています。その一方で、最も急速な成長を遂げているのが養殖セグメントです。FAO（国連食糧農業機関）によると、養殖による生産量が初めて天然漁獲量を上回りました。養殖事業では、健全な水環境を維持し収穫量を最大化するために、溶存酸素、pH、水温の連続監視に大きく依存しており、そのためセンサーは同業界にとって極めて重要な設備投資となっています。

Report Description

According to the latest research report titled, ‘Water Quality Sensors Market Size, Share & Trends Analysis by Parameter, Type, Application, and Geography—Global Forecast to 2036,’ the global water quality sensors market was valued at USD 3.0 billion in 2025. The market is projected to reach USD 8.0 billion by 2036 from an estimated USD 3.28 billion in 2026, growing at a CAGR of 9.3% during the forecast period (2026–2036). The robust growth of this market is primarily driven by the tightening global water regulations, increasing water scarcity, and the accelerating shift toward real-time, continuous water quality monitoring. As water becomes a strategically constrained resource, the ability to accurately measure physical, chemical, and biological parameters across the water cycle—from source water protection to drinking water treatment and wastewater discharge—has become critical for public health, industrial efficiency, and environmental sustainability. The market is further propelled by the rising demand for industrial water reuse and the expansion of the global aquaculture industry, which relies on precise water quality control to ensure healthy yields.

The global water quality sensors market is currently navigating a profound structural transformation, a shift that is fundamentally redefining how water resources are managed, monitored, and protected across the entire hydrological cycle. Historically, water quality assessment was a largely reactive and episodic process, relying on manual grab sampling and subsequent laboratory analysis. This ‘snapshot’ approach often resulted in significant data gaps and delayed operational responses, leaving utilities and industrial operators vulnerable to sudden pollution events or process upsets. Today, the industry is pivoting toward a proactive, ‘intelligent monitoring’ paradigm, characterized by the widespread deployment of online, in-process sensors that provide a continuous, high-frequency stream of real-time data. This transition is not merely a technological upgrade but a fundamental change in the operational philosophy of the water sector, where data-driven decision-making is becoming the new standard. The integration of IoT (Internet of Things) connectivity and advanced edge computing is enabling these sensors to communicate directly with centralized SCADA systems and cloud-based analytics platforms, supporting the development of ‘Smart Water’ networks that can autonomously optimize chemical dosing, detect leaks, and ensure immediate compliance with increasingly stringent discharge permits.

Key Highlights – Water Quality Sensors Market

• The global water quality sensors market is expected to reach USD 8.0 billion by 2036, at a CAGR of 9.3% from 2026 to 2036.
• North America accounts for the largest share of the global water quality sensors market in 2026, holding around 30% of total revenue, driven by stringent water regulation, industrial demand, and a strong installed base.
• pH and ORP sensors represent the largest parameter segment, followed by dissolved oxygen, conductivity, and turbidity sensors.
• Online and in-process sensors are the largest type segment, reflecting the shift toward continuous, real-time water quality monitoring.
• Municipal water and wastewater treatment is the largest application, followed by industrial process water and environmental monitoring.
• Tightening drinking water and wastewater regulation, including PFAS and lead requirements, is driving demand for monitoring.
• Industrial water reuse, process control, and zero-liquid-discharge initiatives are expanding demand for online water quality sensors.
• Aquaculture is a fast-growing application, with FAO reporting that aquaculture surpassed capture fisheries for the first time, requiring water quality monitoring.
• Optical and low-maintenance sensor technologies are reducing calibration and operating costs and expanding adoption.

Another pivotal dimension of this transformation is the rapid ‘parameter expansion’ driven by the emergence of new environmental threats and the tightening of regulatory standards. While traditional monitoring focused on a narrow set of physical indicators like pH, temperature, and turbidity, the modern market is seeing an unprecedented surge in demand for specialized sensors capable of detecting complex chemical and biological contaminants. The global concern over per- and polyfluoroalkyl substances (PFAS)—the so-called ‘forever chemicals’—has triggered a regulatory wave, with the U.S. EPA finalizing national drinking water standards in 2024. This, along with the growing focus on microplastics and endocrine disruptors, is forcing a technological evolution in sensor design, moving toward more sensitive and selective detection methods. Simultaneously, the global crisis of nutrient pollution, which fuels devastating harmful algal blooms, is driving the adoption of high-precision nitrate and phosphate sensors in both agricultural and municipal settings. Furthermore, the industry is witnessing a significant move toward ‘low-maintenance and reagent-free’ sensing architectures. The adoption of optical sensor technologies—such as fluorescence-based dissolved oxygen probes and UV-Vis spectrophotometers for organic load monitoring—is revolutionizing the field by eliminating the need for frequent manual calibration and the use of hazardous chemical reagents. This ‘sensor modernization’ is not only improving data reliability but also significantly reducing the total cost of ownership, making continuous monitoring economically viable for smaller utilities and remote environmental observation stations. The convergence of these trends—real-time digitalization, parameter expansion, and optical innovation—is positioning water quality sensors as the indispensable foundational technology for ensuring global water security in an era of increasing scarcity and climate volatility.

Market Segmentation Analysis

The global water quality sensors market is segmented by parameter (pH and ORP, dissolved oxygen, conductivity, turbidity, chlorine and disinfectant, nutrient and organic, and others), type (online and in-process, portable, and laboratory), application (municipal water and wastewater, industrial process water, environmental monitoring, aquaculture, and others), and geography. The study evaluation includes industry competitors and analyzes the market at the country level.

Based on Parameter

By parameter, the pH and ORP (Oxidation-Reduction Potential) sensors segment is expected to hold the largest share of the global water quality sensors market in 2026. pH measurement is the most fundamental and universal water quality parameter, essential across almost every municipal, industrial, and environmental application to ensure process stability and chemical compliance. The widespread installed base and the low cost of these sensors contribute to their dominant market position. However, the nutrient and organic sensors segment is projected to register the highest CAGR during the forecast period. The growth of this segment is fueled by the intensifying regulatory focus on nutrient pollution (nitrogen and phosphorus) in agricultural runoff and the increasing need to monitor Total Organic Carbon (TOC) and Chemical Oxygen Demand (COD) in industrial wastewater to prevent ecosystem degradation and harmful algal blooms.

Based on Type

By type, the online and in-process sensors segment is expected to hold the largest share in 2026. This segment’s dominance reflects the industry-wide shift toward continuous monitoring and automated process control. Online sensors are integrated directly into the water stream, providing real-time data that is critical for managing drinking water treatment plants, wastewater facilities, and high-purity industrial processes like semiconductor manufacturing. Conversely, the portable sensors segment is projected to grow at a significant rate, driven by the expansion of field-based environmental monitoring and the need for rapid, on-site testing in remote locations and aquaculture farms where permanent infrastructure is not feasible.

Based on Application

By application, the municipal water and wastewater treatment segment is expected to be the major contributor to the market share in 2026. The sheer scale of municipal water infrastructure and the stringent health and environmental regulations governing drinking water quality and wastewater discharge ensure a consistent and high-volume demand for sensors. Meanwhile, the aquaculture segment is witnessing the fastest growth. According to the FAO, aquaculture production has surpassed capture fisheries for the first time, and these operations rely heavily on continuous monitoring of dissolved oxygen, pH, and temperature to maintain healthy aquatic environments and maximize yields, making sensors a critical operational investment for the industry.

Geographic Analysis

In 2026, North America is expected to account for the largest share of the global water quality sensors market, representing a dominant 30% of the total global revenue. The region’s commanding position is anchored by a unique combination of stringent environmental regulations, a highly developed water infrastructure, and a robust industrial sector that prioritizes water security and process efficiency. The United States, in particular, is the primary driver of this regional market, featuring a vast network of municipal water and wastewater utilities that are increasingly adopting real-time monitoring technologies  to comply with evolving federal standards. The adoption of advanced sensors in North America has been significantly accelerated by the Environmental Protection Agency’s (EPA) recent regulatory actions, including the finalization of national drinking water standards for PFAS and the mandate for lead service line replacement. These regulations have effectively transformed water quality monitoring from a compliance-driven activity into a core strategic priority for utility managers. Furthermore, the region is a global hub for water technology innovation, home to several of the world’s leading manufacturers of sensing solutions. The presence of these companies facilitates the rapid market penetration of cutting-edge technologies, such as optical multiparameter sondes and cloud-connected sensor networks. The North American market is also characterized by significant investment from the semiconductor, power generation, and chemical industries, where high-precision water quality monitoring is essential for protecting expensive capital equipment and optimizing resource reuse. The key companies operating in the North American market include Xylem Inc., Hach Company (Veralto), Thermo Fisher Scientific, Emerson Electric, and Honeywell.

Europe represents a substantial and highly sophisticated segment of the global water quality sensors market, accounting for approximately 26% of global revenue in 2026. The region’s market dynamics are characterized by a strong emphasis on comprehensive environmental protection and a highly coordinated approach to water resource management. European nations, particularly Germany, the United Kingdom, and France, have been at the forefront of developing and implementing rigorous regulatory frameworks, such as the EU Water Framework Directive and the recast Drinking Water Directive. These policies mandate the extensive monitoring of a broad range of parameters, including emerging contaminants and nutrients, across all surface and groundwater bodies. The European market is also distinguished by its leadership in environmental observation networks, where continuous sensor data is used to manage transboundary river basins and protect coastal ecosystems. Furthermore, the region’s robust focus on the ‘Circular Economy’ and industrial sustainability is driving a steady demand for high-precision sensors in water recycling and wastewater reuse applications. European manufacturers are global leaders in the development of low-maintenance and reagent-free sensing technologies, leveraging their expertise in optical and electrochemical instrumentation. The presence of numerous innovative technology firms in the DACH region and Scandinavia fosters a highly competitive environment that drives continuous improvement in sensor reliability and digital integration. The key companies operating in the European market include Endress+Hauser, ABB, Honeywell, Yokogawa Electric, and OTT HydroMet.

Asia-Pacific is projected to be the most dynamic and fastest-growing region in the global water quality sensors market, registering the highest CAGR during the forecast period. This rapid expansion is primarily driven by the massive investments in water and wastewater infrastructure currently underway in China, India, and Southeast Asia. As these nations seek to address severe water pollution challenges and expand access to safe drinking water for their rapidly urbanizing populations, there is an unprecedented surge in demand for advanced monitoring technologies. China’s stringent ‘Action Plan for Prevention and Control of Water Pollution’ and India’s ‘Jal Jeevan Mission’ are transformative policy drivers that mandate the widespread deployment of online sensors across municipal networks. The transition from periodic sampling to continuous real-time monitoring is a key driver, as environmental regulators increasingly utilize automated sensor data for enforcement and resource management. Furthermore, the region dominates the global aquaculture industry, accounting for approximately 70% of total production. Producers in countries like Vietnam, Thailand, and Indonesia are increasingly investing in water quality sensors to maintain optimal conditions and maximize yields, making aquaculture a critical growth frontier for the market. The expansion of the high-tech manufacturing sector in Asia-Pacific, particularly in the semiconductor and electronics industries, also contributes significantly to the demand for high-purity water sensors. As awareness of the environmental and economic benefits of ‘Smart Water’ management continues to rise, the Asia-Pacific market is expected to remain the primary growth engine for the global industry. The key companies operating in the Asia-Pacific market include Horiba, Shimadzu, Yokogawa Electric, EKO Instruments, and various regional integrators.

Latin America and the Middle East & Africa (MEA) represent critical emerging frontiers for the water quality sensors market, where the demand for advanced monitoring technologies is rising in tandem with resource management and modernization efforts. In Latin America, the market is primarily driven by the expansion of wastewater treatment infrastructure and the implementation of improved environmental standards in major economies such as Brazil, Mexico, and Chile. There is a particularly strong focus on improving the management of water resources in the mining and agricultural sectors, driving the adoption of specialized sensors for monitoring industrial runoff and irrigation water quality. In the Middle East, the market is propelled by the region’s acute water scarcity and ambitious government-led development plans, such as Saudi Arabia’s ‘Vision 2030.’ These nations are early adopters of premium water technologies, including advanced desalination and wastewater reclamation systems that utilize high-precision sensors to optimize efficiency and ensure the safety of recycled water. The GCC countries, in particular, represent a high-value segment due to their significant investments in ‘Smart City’ infrastructure, where water quality monitoring is integrated into broader urban management platforms. In Africa, the market is in the early stages of development but presents significant long-term potential. Growth is currently concentrated in major urban centres where international aid and government initiatives are focused on enhancing drinking water safety and basic sanitation monitoring. As these regions continue to invest in their water infrastructure and improve patient access to safe water, the demand for reliable and easy-to-use water quality sensing solutions is expected to grow steadily. The key companies operating in these regions include global manufacturers who partner with specialized local distributors to provide the necessary technical expertise and operational training to local water utilities and industrial operators.

Competitive Landscape

The global water quality sensors market is competitive and includes large water technology and instrument companies, process automation and analytical instrument providers, and specialized water quality sensor firms. Participants compete on measurement accuracy and reliability, parameter coverage, maintenance and total cost of ownership, integration with monitoring and control systems, and application expertise across municipal, industrial, and environmental markets. Large diversified companies compete across parameters and applications, while specialized firms lead in particular parameters, technologies, or applications such as aquaculture or environmental monitoring.

A key competitive trend is the shift toward online, low-maintenance, and connected sensors, supported by optical technologies, self-diagnostics, and digital integration. Leading companies are investing in reagent-free optical sensors, multiparameter instruments, and digital water platforms that connect sensors to analytics, while specialized firms advance sensing technologies and application-specific solutions. Consolidation among water technology companies, partnerships across the value chain, and the integration of sensors with software and services are shaping the market, and the emphasis on reliability, low maintenance, and continuous monitoring is favoring companies that can deliver robust, connected water quality sensing.

Key Players

The key players operating in the global water quality sensors market include Xylem Inc. (YSI, WTW) (U.S.), Hach Company (Veralto) (U.S.), Endress+Hauser (Switzerland), Thermo Fisher Scientific (U.S.), ABB (Switzerland), Emerson Electric (U.S.), Honeywell (U.S.), Horiba (Japan), Shimadzu (Japan), Yokogawa Electric (Japan), In-Situ Inc. (U.S.), OTT HydroMet (Netherlands), Campbell Scientific (U.S.), Libelium (Spain), Eureka Water Probes (U.S.), Danaher Corporation (U.S.), and Badger Meter, Inc. (U.S.).

Key Questions Answered in the Report—

• What is the projected size of the global water quality sensors market by 2036?

The global water quality sensors market is projected to reach USD 8.0 billion by 2036.

• What is the expected CAGR for the market during the forecast period?

The market is expected to grow at a CAGR of 9.3% from 2026 to 2036.

• Which parameter segment is expected to hold the major share of the market in 2026?

The pH and ORP sensors segment is expected to hold the largest share due to its fundamental role in almost all water monitoring applications.

• Which geographical region is expected to dominate the market in 2026?

North America is expected to dominate the market with a 30% share, driven by stringent regulations and advanced industrial demand.

• How is the shift toward real-time monitoring impacting the market?

The shift toward real-time monitoring is driving the growth of online and in-process sensors, enabling faster response and better control.

• What is the role of aquaculture in the growth of the water quality sensors market?

Aquaculture is the fastest-growing application, as producers rely on sensors to maintain healthy conditions and maximize yields.

• Which technology trend is significantly reducing the total cost of ownership for sensors?

The adoption of optical and low-maintenance sensor technologies is reducing calibration and operating costs.

• How are PFAS regulations in North America influencing the market?

New EPA standards for PFAS are mandating extensive monitoring across municipal utilities, driving demand for specialized sensors.

Scope of the Report:

Water Quality Sensors Market Assessment — by Parameter

• pH and ORP Sensors
• Dissolved Oxygen Sensors
• Conductivity Sensors
• Turbidity Sensors
• Chlorine and Disinfectant Sensors
• Nutrient and Organic Sensors
• Others

Water Quality Sensors Market Assessment — by Type

• Online and In-process Sensors
• Portable Sensors
• Laboratory Sensors

Water Quality Sensors Market Assessment — by Application

• Municipal Water and Wastewater Treatment
• Industrial Process Water Monitoring
• Environmental Monitoring
• Aquaculture
• Others

Water Quality Sensors Market Assessment — by Geography

• North America (U.S., Canada)
• Europe (Germany, France, U.K., Italy, Spain, Rest of Europe)
• Asia-Pacific (China, Japan, South Korea, India, Australia, Rest of Asia-Pacific)
• Latin America (Brazil, Mexico, Rest of Latin America)
• Middle East & Africa (UAE, Saudi Arabia, South Africa, Rest of MEA)

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