News Details

KaiNaFu Launches Next-Generation KNF-103B Fluorescence Dissolved Oxygen Sensor for Precision Water Quality Monitoring

Shenzhen, China — KaiNaFu, a leading manufacturer of water quality monitoring instrumentation, proudly announces the official release of the KNF-103B Fluorescence Dissolved Oxygen Sensor. This advanced optical DO probe leverages cutting-edge fluorescence lifetime technology to deliver unparalleled accuracy, reliability, and ease of use for aquaculture, wastewater treatment, and environmental monitoring applications worldwide.

Revolutionary Fluorescence Lifetime Technology

The KNF-103B represents a significant leap forward in dissolved oxygen measurement. Unlike traditional electrochemical sensors that require frequent membrane replacements and electrolyte refills, the KNF-103B employs a new generation of high-performance fluorescent materials independently developed by KaiNaFu. The sensor operates on the principle of fluorescence quenching — blue light emitted by an LED excites the fluorescent material on the inner surface of the sensing cap, which then emits red light. By detecting the phase difference between the excitation and emission signals and comparing it with internal calibration values, the oxygen concentration is calculated with remarkable precision, automatically compensated for temperature and pressure variations.

Key Advantages Over Conventional DO Sensors

• Zero Oxygen Consumption: The optical measurement principle does not consume oxygen during detection, ensuring accurate readings even in stagnant or low-flow environments.
• No Membrane, No Electrolyte: Completely eliminates the need for consumable membranes and electrolyte solutions, dramatically reducing ongoing operational costs.
• Maintenance-Free Operation: Requires no routine calibration or maintenance, with sensor drift of less than 1% per year — ideal for long-term continuous monitoring deployments.
• Anti-Interference Design: Unaffected by hydrogen sulfide, electromagnetic interference, and other common environmental contaminants that plague traditional electrochemical sensors.
• Ultra-Fast Response: Achieves a response time of under 10 seconds, enabling real-time monitoring of rapidly changing water conditions.

Technical Specifications at a Glance

Seamless IoT Integration with DATAIO Cloud Platform

All KaiNaFu water quality sensors, including the KNF-103B, integrate seamlessly with the DATAIO Water Quality Monitoring Cloud Platform. This comprehensive IoT solution enables real-time data reception, visualization, statistical analysis, automated reporting, storage, and remote download of monitoring data from multiple sensor nodes. Users can access their data dashboard via desktop web browser, Apple and Android mobile apps, or WeChat Official Account/Mini Program — providing true anytime, anywhere monitoring capability. The platform generates intuitive visual charts and trend analyses, empowering operators to make data-driven decisions rapidly.

Target Applications

• Aquaculture: Continuous DO monitoring in fish farms, shrimp ponds, and hatcheries to optimize feeding and aeration strategies.
• Wastewater Treatment: Aeration basin control and effluent quality monitoring in municipal and industrial treatment plants.
• Environmental Monitoring: River, lake, reservoir, and coastal water quality assessment for regulatory compliance.
• Industrial Process Water: Boiler feed water, cooling water, and process water quality control.

Availability and Ordering Information

The KNF-103B Fluorescence Dissolved Oxygen Sensor is available for immediate order. With a minimum order quantity of just 1 piece and a supply capacity of 500 pieces per month, KaiNaFu accommodates both pilot projects and large-scale deployments. Delivery time is 5-10 working days, with eco-friendly paper box packaging. Payment terms are T/T. For pricing, technical consultation, or to request a trial account for the DATAIO cloud platform, please contact the KaiNaFu sales team directly.

About KaiNaFu: Based in Shenzhen, China, KaiNaFu specializes in the research, development, and manufacturing of high-precision water quality sensors and monitoring solutions. With a commitment to innovation and quality, KaiNaFu serves customers across the global aquaculture, environmental protection, and industrial water treatment sectors.