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What Sensor Detects Ammonia in Water?

What Sensor Detects Ammonia in Water?


Ammonia, made of nitrogen and hydrogen, is important for checking water quality. It's key to health in nature and life underwater. Found in water, ammonia often comes from farms and factories. It can make the water too rich and cause harm to fish-like creatures living there. This changes finding ammonia, which is not only a science task but something needed to protect the environment. Nowadays, sensors are very important for this job. They help us to watch levels of ammonia in different water places quickly and correctly all the time.

Ammonia Detection

Ammonia is harmful to aquatic life and unfit for human consumption due to its negative impact on water quality. Because ammonia promotes nitrification, which lowers oxygen levels, aquatic habitats suffer. As a result, protecting the environment and meeting water quality criteria established by international environmental authorities depend on accurate ammonia level detection and monitoring.

Types of Ammonia Sensors for Detection

Electrochemical Sensors

Because of their sensitivity and selectivity, these ammonia sensor find extensive utility. A current proportionate to the ammonia concentration is generated by their operation, which is based on the oxidation or reduction of ammonia on an electrode surface. Due to their accuracy and inexpensive cost, electrochemical sensors have gained a reputation for excellence.

Optical Sensors

Optic sensors can detect ammonia by detecting changes in light intensity or wavelength when exposed to the gas based on the principles of light absorption and fluorescence. These sensors are very precise and resistant to water-borne interference.

Colorimetric Sensors

For these, the presence of ammonia causes a reagent to change color. A good indicator of the ammonia content is the degree to which the color changes. Their intuitive design and ease of usage make them ideal for use in the field.

Working Principles of Ammonia Sensors

Direct contact between an ammonia and a sensitive electrode is used in electrochemical sensing. An electrical signal that may be used to measure the concentration of ammonia is generated by the electrochemical process.

Uses ammonia-sensitive light-sensitive materials. The material's optical characteristics, such as absorbance or fluorescence, are changed due to this reaction, and the quantities of ammonia may be determined by measuring these changes.

Chemical processes that cause a change in color when ammonia is present are the basis of colorimetric detection. Ammonia content is determined by quantitative analysis of this colorimetric shift.

Top Ammonia Detection Products

BH-485-NO3-N Digital Nitrate Nitrogen Sensor

Nitrate nitrogen levels in different bodies of water may be measured with the help of this specific ammonia sensor. Nitrate nitrogen values are essential for evaluating water quality, particularly in environmental and agricultural monitoring, and this instrument employs state-of-the-art technology to provide such results with confidence. Its digital RS485 output makes the ammonia probe compatible with modern data-collecting systems and easy to connect to monitoring networks. This durable device is ideal for indoor and outdoor usage due to its durability and versatility. Avoiding eutrophication and understanding nutrient cycles requires accurate nitrate nitrogen sensor measurements.


Digital RS485 COD TOC BOD Sensor CODS-3000-01

If you need to know the COD, TOC, and BOD levels in water, go no further than the CODS-3000-01, a multipurpose sensor. Wastewater treatment and environmental monitoring rely on this ammonia probe to determine the amount of organic pollutants in the water. It allows for analysis and monitoring in real-time thanks to its digital RS485 interface, which easily guarantees data transfer. This ammonia probe is a great option for thorough water quality testing since it can simultaneously measure COD, TOC, and BOD. Monitoring these indicators is crucial for regulatory compliance and effective treatment procedures in industrial and municipal wastewater treatment plants, making it especially valuable in these settings.


Portable Ammonia Analyzer

The ammonia levels in water may be easily measured with this portable analyzer. Environmental scientists and water quality experts can simply do on-site testing because to its mobility, making it a great option for field applications. Ammonia is an important metric for evaluating water quality, particularly in aquatic ecosystems and wastewater treatment; the analyzer is designed to detect it. Its rapid reaction time and intuitive design make it an invaluable tool for aquaculture, industrial wastewater management, environmental monitoring, and other fields requiring precise measurements. Users are provided flexibility and convenience by the analyzer's portable design, which allows crucial ammonia level evaluations to be done in numerous places.



Problems with ammonia sensors persist despite improvements, including their susceptibility to interference from other compounds, the frequency with which they must be calibrated, and their resilience in extreme environmental conditions. Improving the selectivity, sensitivity, and lifespan of these ammonia sensors and creating smaller, more affordable equivalents for wider applications are the main goals of future research.

Environmental monitoring and water quality management rely on ammonia water detection. Improving and developing ammonia sensors is essential because they allow for accurate, efficient, and real-time monitoring. These sensors will play an increasingly important role in our future attempts to keep aquatic ecosystems healthy and sustainable as technology develops. If you want to know more about these detectors, Boqu Instruments can help you. 

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