Microelectronic Residual Chlorine Sensor Market Report 2025

The microelectronic residual chlorine sensor market size has grown strongly in recent years. It will grow from $1.29 billion in 2024 to $1.42 billion in 2025 at a compound annual growth rate (CAGR) of 10%. Growth during the historic period was driven by increasing use of chlorine monitoring in water treatment plants, rising awareness of safe drinking water standards, expanded installation of water disinfection systems, growing demand for industrial water quality monitoring, and wider adoption of chlorine sensors in swimming pools.

The microelectronic residual chlorine sensor market size is expected to see strong growth in the next few years. It will grow to $2.05 billion in 2029 at a compound annual growth rate (CAGR) of 9.6%. Growth in the forecast period is expected to result from rising demand for real-time water quality monitoring, increasing adoption of smart water management systems, greater need for compact and low-maintenance sensors, expanding use of chlorine monitoring in food and beverage processing, and growing focus on remote and automated water monitoring solutions. Key trends anticipated include advancements in microelectronic sensing technologies, development of miniaturized sensor designs, investment in wireless and IoT-enabled water monitoring devices, innovations in long-life electrode materials, and improvements in energy-efficient sensor calibration systems.

The rising demand for safer drinking water is expected to drive the growth of the microelectronic residual chlorine sensor market in the future. Safer drinking water means water that is free from harmful contaminants and complies with health and safety standards for human consumption. This demand is growing as consumers become more health-conscious, with increased awareness of waterborne illnesses and the importance of clean, reliable water supplies. Microelectronic residual chlorine sensors improve water safety systems by offering precise, real-time monitoring of chlorine levels from treatment facilities to distribution networks. For example, in July 2023, the United Nations Office for the Coordination of Humanitarian Affairs, a US-based government agency, reported that the proportion of global households with safely managed drinking water rose to 73% in 2022, up from 69% in 2021. Thus, the increasing demand for safer drinking water is boosting the growth of the microelectronic residual chlorine sensor market.

Leading companies in the microelectronic residual chlorine sensor market are advancing technologies such as amperometric sensing to improve the accuracy and efficiency of chlorine detection. Amperometric sensing is a technique that measures the concentration of a chemical by monitoring the electric current generated when the substance undergoes oxidation or reduction at an electrode under a fixed voltage. For instance, in April 2025, ABB Ltd., a Switzerland-based industrial technology firm, introduced the ChloroStar series of analyzers, designed for accurate and continuous monitoring of residual chlorine in water treatment and industrial processes. These analyzers use a direct-contact electrode cell with continuous sample flow cleaning, making them ideal for challenging environments such as wastewater and industrial effluents. Key benefits include enhanced measurement precision, lower maintenance needs, and up to 20% reduction in consumable costs, enabling more efficient, reliable, and cost-effective chlorine monitoring in municipal and industrial settings.

In February 2024, ABB Ltd., a Switzerland-based provider of industrial automation, robotics, electrification, and water management solutions, acquired Real Tech Inc. for an undisclosed amount. This acquisition expanded ABB’s smart water management offerings by incorporating Real Tech’s advanced optical sensors for real-time monitoring of residual chlorine and other water quality metrics, strengthening its position in municipal and industrial water treatment markets. Real Tech Inc. is a US-based company specializing in water quality monitoring and testing technologies.

Major players in the microelectronic residual chlorine sensor market are Thermo Fisher Scientific Inc., ABB Ltd., Emerson Electric Co., Endress+Hauser AG, Xylem Inc., ATI Inc., Polestar Technologies Inc., HORIBA Ltd., Hach Company, Swan Analytical Instruments, ProMinent GmbH, Nanjing Wotian Technology Co. Ltd., Myron L Company, Thermochem Corporation Pvt. Ltd., Axis Solutions Private Limited, Hangzhou Supmea International Trading Co. Ltd., Shanghai Boqu Instrument Co. Ltd., Aquadax South Asia Private Limited (OPC), Shanghai GL Environmental Technology Co. Ltd., Suzhou Delfino Environmental Technology Co. Ltd.

Asia-Pacific was the largest region in the microelectronic residual chlorine sensor market in 2024. Asia-Pacific is expected to be the fastest-growing region in the forecast period. The regions covered in microelectronic residual chlorine sensor report are Asia-Pacific, Western Europe, Eastern Europe, North America, South America, Middle East and Africa. The countries covered in the microelectronic residual chlorine sensor market report are Australia, Brazil, China, France, Germany, India, Indonesia, Japan, Russia, South Korea, UK, USA, Canada, Italy, Spain.

Note that the outlook for this market is being affected by rapid changes in trade relations and tariffs globally. The report will be updated prior to delivery to reflect the latest status, including revised forecasts and quantified impact analysis. The report’s Recommendations and Conclusions sections will be updated to give strategies for entities dealing with the fast-moving international environment.

The rapid rise in U.S. tariffs and the subsequent trade frictions in spring 2025 are having a major impact on the electrical and electronics sector, with semiconductors, display panels, and rare-earth metals (essential for batteries and motors) subject to steep duties. Consumer electronics brands face profit erosion, as competitive markets limit their ability to pass costs to buyers. Industrial electronics manufacturers, meanwhile, grapple with delayed projects due to shortages of tariff-impacted components like printed circuit boards. Companies are responding by relocating assembly to tariff-exempt countries, increasing inventory buffers, and redesigning products to reduce dependency on restricted materials.

A microelectronic residual chlorine sensor is a compact electronic device designed to detect and quantify residual chlorine levels in water and other fluids. By leveraging microelectronic components and sensing technology, it provides accurate, real-time monitoring of chlorine concentrations, helping ensure water quality and safety in applications such as water treatment, environmental monitoring, and industrial processes. The sensor converts chemical information into electrical signals for analysis and control.

The primary types of microelectronic residual chlorine sensors are amperometric and potentiometric sensors. Amperometric sensors detect chlorine by measuring the current generated during its electrochemical oxidation or reduction in a solution. These sensors use technologies such as electrochemical and optical sensing. Applications span smart homes, the food and medical industries, agriculture, and more. End users include municipal water treatment facilities, industrial and commercial sectors, and residential users.

The microelectronic residual chlorine sensor market research report is one of a series of new reports that provides microelectronic residual chlorine sensor market statistics, including microelectronic residual chlorine sensor industry global market size, regional shares, competitors with a microelectronic residual chlorine sensor market share, detailed microelectronic residual chlorine sensor market segments, market trends and opportunities, and any further data you may need to thrive in the microelectronic residual chlorine sensor industry. The microelectronic residual chlorine sensor market research report delivers a complete perspective of everything you need, with an in-depth analysis of the current and future scenario of the industry.

The microelectronic residual chlorine sensor market consists of revenues earned by entities by providing services such as water quality monitoring and analysis, sensor calibration and maintenance services, installation and integration services, remote monitoring and data reporting services, and custom sensor design and development services. The market value includes the value of related goods sold by the service provider or included within the service offering. The microelectronic residual chlorine sensor market also includes sales of optical residual chlorine sensors, membrane-based residual chlorine sensors, electrochemical residual chlorine sensors, ultraviolet absorption residual chlorine sensors, and digital residual chlorine sensors. Values in this market are ‘factory gate’ values; that is, the value of goods sold by the manufacturers or creators of the goods, whether to other entities (including downstream manufacturers, wholesalers, distributors, and retailers) or directly to end customers. The value of goods in this market includes related services sold by the creators of the goods.

The market value is defined as the revenues that enterprises gain from the sale of goods and/or services within the specified market and geography through sales, grants, or donations in terms of the currency (in USD unless otherwise specified).

The revenues for a specified geography are consumption values that are revenues generated by organizations in the specified geography within the market, irrespective of where they are produced. It does not include revenues from resales along the supply chain, either further along the supply chain or as part of other products.

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