1. Project Background
An environmental protection authority required long-term monitoring of chlorophyll levels in a lake near an urban area to observe algae growth and support water quality management.
Due to the open nature of the lake and seasonal water quality changes, traditional manual sampling was inefficient and lacked real-time insight.
As a result, the authority purchased and installed the KWS-400 optical fiber chlorophyll sensor for continuous online monitoring.

2. Actual Application Conditions
During operation, the monitoring site presented the following conditions:
- Open lake water body
- Long-term submerged installation
- Presence of algae and suspended matter
- Requirement for continuous monitoring
- Limited on-site maintenance access
3. Solution Implementation
3.1 Sensor Deployment
The KWS-400 chlorophyll sensor was installed at a fixed monitoring point using a mounting bracket, with the optical window facing downward to reduce bubble interference.
3.2 Operation Performance
Once installed, the sensor continuously measures chlorophyll-related parameters and transmits data via RS-485 to the local monitoring system.
The collected data provides clear visibility into chlorophyll level trends over time.
4. Project Results
| Item | Result |
| Long-term stability | High |
| Data consistency | Reliable |
| Maintenance requirement | Low |
| Suitability for open water | Excellent |
5. Conclusion
The practical application of the KWS-400 optical fiber chlorophyll sensor demonstrates its suitability for long-term lake water quality monitoring.
By providing continuous chlorophyll trend data, the sensor helps reduce manual sampling efforts and improves the efficiency of water quality management.For applications with more demanding maintenance conditions or long-term unattended operation, the KWS-400B model is also available.
Based on the KWS-400 platform, the KWS-400B features an automatic cleaning function that helps minimize biofouling effects and is well suited for extended deployment with reduced maintenance requirements.
For more technical details, wiring diagrams, or model selection guidance, please click here to learn more or contact our technical team.
