Applications

Environmental protection

Environmental water quality monitoring forms the backbone of pollution control, ecological protection, and regulatory compliance programs worldwide. From automated river monitoring stations to discharge outlet surveillance, the quality and continuity of measurement data directly determines the effectiveness of environmental management.


Linksens environmental monitoring sensors are engineered for deployment in unattended field stations, providing continuous, reliable data even in remote locations with limited maintenance access.


Application in River-Lake Grid-Type Monitoring Scenarios
【Pain Points in River/Coastal Discharge Monitoring:】

• Surface water quality monitoring stations on rivers, lakes, and reservoirs

• Pollution discharge (effluent outfall) surveillance at industrial and municipal discharge points

• Ecological water quality assessment in protected water bodies and wetlands

• Early warning systems for upstream contamination events and accidental spills

• Cross-border river monitoring and national environmental data network integration

• Groundwater quality monitoring at contaminated sites and landfills


【Key Parameters for Environmental Monitoring】

Parameter

Target Range

Why It Matters

pH

6.0 – 9.0 (surface water standard)

Ecosystem health; acid rain and industrial discharge detection

Dissolved Oxygen (DO)

> 5 mg/L (aquatic life threshold)

Primary ecological health indicator

COD (UV254)

< 20 mg/L (Class II water)

Organic pollution load from industrial and municipal sources

Ammonia Nitrogen

< 0.5 mg/L (Class I water)

Agricultural runoff and sewage contamination indicator

Turbidity

< 3 NTU (Class II water)

Erosion, runoff events, and sediment load indicator

Conductivity

< 1,000 µS/cm

Salinity, industrial discharge, and groundwater intrusion indicator

ORP

Positive (oxidizing)

Redox state; organic pollution and anaerobic condition indicator

【Recommended Linksens Products】

Product Model

Measured Parameters

Best For

Seven-Parameter Water Quality Probe

pH, DO, EC, Turbidity, NH4+, ORP, Temp

All-in-one submersible sonde for automated stations

UV254 COD Sensor (5-beam)

COD, Turbidity, Temperature

Discharge outlet continuous COD surveillance

S-NH131 Ammonia Nitrogen Sensor

NH4+, Temperature

Agricultural and municipal runoff monitoring

S-DO011 Dissolved Oxygen Sensor

DO, Temperature

Ecological health monitoring in rivers and reservoirs

Multi-channel Multi-parameter Transmitter

Up to 8 sensors

Data aggregation for multi-sensor monitoring stations

Frequently Asked Questions
【FAQ】

Q: Can Linksens sensors integrate with national environmental monitoring platforms?

A: Yes. The RS-485 Modbus RTU output is compatible with data acquisition units (DAU) used in national environmental monitoring networks in China (HJ/T series standards), Southeast Asia, and internationally. Custom register maps and communication protocol adaptations can be accommodated on request.


Q: How do sensors perform in unattended outdoor stations exposed to sunlight, rain, and biofouling?

A: All Linksens online sensors are IP68-rated for continuous immersion. In high-algae or high-turbidity environments, optical sensors should be fitted with mechanical anti-fouling wipers or copper anti-fouling guards. Electrochemical sensors (pH, ORP, conductivity) are cleaned and calibrated during scheduled maintenance visits (typically every 1–3 months).

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