Real-Time Water Quality Monitoring: Online Sensors at a Glance

Water: Essential, but Water Quality Matters More

Water is vital, yet water quality is even more critical. To protect water resources, we need to measure water quality, focusing on indicators such as temperature, transparency, hardness, pollutant content, and pH. These data directly reflect the health of water bodies.

How to Measure Water Quality?

Traditionally, sampling and laboratory testing were necessary, but with the development of electronic sensor technology, water quality measurement has become simpler – just use sensors correctly.

Common Water Quality Sensors: The Significance of "Online"

"Online" monitoring means sensors can continuously and real-timely monitor water bodies without frequent manual sampling, providing instant feedback on water quality changes. Common online water quality sensors include:

1. Online Water Temperature Sensor FT-S21

Using high-precision thermistors to monitor water temperature in real time, it outputs accurate data and is widely applied in environmental monitoring, aquaculture, industrial cooling systems, etc.

2. Water Transparency Sensor FT-S20

Based on optical principles, it measures water transparency by emitting light and detecting light attenuation, reflecting the content of suspended solids and impurities in real time. Features high precision and fast response, suitable for monitoring rivers, lakes, oceans, and wastewater treatment.

3. Online Water Hardness Sensor FT-S2

Using selective permeable membrane electrode technology, it continuously monitors ion concentration and temperature in aqueous solutions. With 8 ion selection types, wide measurement range, high precision, and IP68 protection, it suits online ion detection in various water bodies.

4. Oil-in-Water Sensor FT-S17S

Based on fluorescence detection technology, it accurately measures oil content in water. Ideal for water monitoring in petroleum extraction, processing, and transportation, it provides timely oil pollution warnings to prevent environmental damage.

5. Cyanobacteria Sensor FT-S16S

A fluorescence-based intelligent water quality sensor, it measures cyanobacteria concentration by exciting phycocyanin fluorescence with specific wavelengths and detecting fluorescence intensity. Features high sensitivity, real-time monitoring, and strong anti-interference, widely used in water body monitoring.

6. Chlorophyll a Sensor FT-S15S

Using fluorescence detection, it measures chlorophyll a content by exciting and detecting fluorescence intensity at specific wavelengths, leveraging chlorophyll's fluorescence and light absorption properties. It enables real-time, rapid, non-destructive measurement with high sensitivity and accuracy for various water bodies.

7. Sludge Concentration Sensor FT-S11S

Using optical scattering or infrared absorption principles, it accurately measures suspended sludge concentration. With fast response and stability, it monitors and warns of concentration changes, applied in wastewater treatment and ecological restoration.

8. Water Conductivity Sensor FT-S7

Based on electrode method, it measures the conductivity of aqueous solutions. With high precision, fast response, and automatic temperature compensation, IP68 protection makes it suitable for real-time conductivity monitoring in surface water, industrial wastewater, etc.

9. Online Free Chlorine Sensor FT-S4

Using electrode or colorimetric methods, it monitors free chlorine content in real time. With fast response to chlorine changes, it applies to drinking water disinfection, industrial circulating water treatment, and health standard detection.

10. Online ORP Sensor FT-S6

Using composite electrode technology, it measures solution redox potential in real time, with temperature compensation to eliminate temperature effects. IP68 protection makes it suitable for online monitoring in surface water, wastewater treatment, etc.

11. Online COD & Turbidity Sensor FT-S1S

Integrating chemical oxidation and optical scattering technologies, it simultaneously measures chemical oxygen demand (COD) and turbidity with fast response and high stability. It reflects organic pollution and suspended particles, applied in wastewater treatment, surface water monitoring, and industrial water management.

12. Online Ammonia-Nitrogen & pH Integrated Sensor FT-S5

Ammonia-nitrogen is a nutrient salt in water, and excessive content causes eutrophication; pH affects water chemical balance and biological habitats. This sensor integrates ammonia-nitrogen and pH detection to monitor two key parameters simultaneously, improving monitoring efficiency and accuracy.