Dissolved Oxygen Sensors Market Size

Dissolved Oxygen Sensors Market size was valued at USD 392.15 million in 2024 and is expected to reach USD 826.23 million by 2037, registering around 5.9% CAGR during the forecast period i.e., between 2025-2037. In the year 2025, the industry size of dissolved oxygen sensors is assessed at USD 430.04 million.

Further, the market generated a revenue in the year 2022 owing to the increasing demand for dissolved oxygen sensors from various industries, such as water and wastewater treatment, pharmaceuticals, and food & beverages. The need for wastewater treatment and cleaning, as well as the incidence of water pollution, is also anticipated to drive the need for these sensors. Approximately 68% of the wastewater generated by the high-income countries is believed to be treated by the wastewater treatment plants. A water treatment ratio of 37% is observed in upper-middle-income countries, 27% in lower-middle-income countries, and 7% in low-income countries. Globally, it accounts for nearly 19% of wastewater treatment. The sensors are used to monitor the levels of pollutants in wastewater and to ensure that it meets safety standards. This is important for protecting the environment and public health, and it is also cost-effective for wastewater management systems. Moreover, increasing awareness about water quality and the need to reduce water pollution is also driving the growth of the global dissolved oxygen sensors market.

Oxygen is measured through dissolved oxygen probes by measuring how much enters the sensor via diffusion through a membrane. The membrane used in the probe is permeable to oxygen, but not to other substances. The oxygen molecules then diffuse across the membrane and are detected by the sensor. The sensor then converts the oxygen molecules into an electrical signal, which can then be used to measure the amount of dissolved oxygen in the water. High levels of dissolved oxygen indicate a healthy aquatic ecosystem, while low levels can indicate that the ecosystem is being negatively impacted by pollutants.

These sensors measure the amount of oxygen dissolved in aqueous solutions, which is necessary for the proper functioning of many industries. For instance, oxygen is essential for the aerobic treatment of wastewater, and for the growth of aquatic life in aquaculture. In the environmental sciences, these sensors can be used to monitor the health of rivers, lakes, and oceans.  In addition to these, factors that are believed to fuel the market growth of dissolved oxygen sensors include increasing water scarcity, growing population, and rising awareness of wastewater treatment. As the demand for clean water resources continues to grow, these sensors provide an efficient and reliable method of monitoring dissolved oxygen levels. In addition, with rapid industrialization in a number of regions, the global market for dissolved oxygen sensors is expected to grow at a higher rate. Industrialization leads to an increase in wastewater being discharged into rivers and lakes, which can lead to an increase in pollutants that can reduce the dissolved oxygen content of the water. By monitoring the dissolved oxygen content, industries can ensure that their wastewater discharge does not have a negative impact on the environment.