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12V Dissolved Oxygen Salinity Multi Parameter Water Quality Sensor ModbuS OEM

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Submerged Dissolved Water Oxygen Sensor o2 DO Probe ODM Response time is 10 seconds

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WHO ARE WE

Shenzhen Kainafu Technology Co., Ltd.

Shenzhen Kainafo Technology Co., Ltd. is a technology based enterprise integrating R&D, production, sales, technical services, and after-sales support, focusing on technological innovation and system integration in the field of water quality sensors and water quality monitoring.Based deep industry experience, Kainafo has built a comprehensive water quality sensing system covering multiple scenarios, including water sources, water supply networks, sewage treatment, river and industrial emission.

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PH Sensor

ORP Sensor

COD Sensor

Water Turbidity Sensor

Conductivity Water Sensor

Dissolved Oxygen Sensor

Applicable to various scenarios

SOLUTION

03-20 2026

KNF-400B Pool Water Monitoring System Deployed at Qianhai Hotel

Smart, Reagent-Free Water Quality Monitoring Ensures Safe Swimming Experience at Qianhai HotelShenzhen Kainaifu Technology Co., Ltd. has successfully installed its KNF-400B Online Water Quality Monitoring System at a hotel in Qianhai, Shenzhen, enabling real-time, continuous monitoring of critical pool water parameters—including free chlorine, pH, ORP, water temperature, and turbidity. Designed in compliance with China’s Hygienic Standard for Drinking Water, the KNF-400B system provides reliable, automated water safety management without the need for chemical reagents. Its modular architecture allows flexible configuration for parameters such as total chlorine, COD, conductivity, TDS, and more—making it ideal for single-point or large-scale deployments in hotels, resorts, schools, and community facilities.At the Qianhai hotel site, the system delivers 24/7 visibility into water quality through a built-in 7-inch touchscreen interface with secure user login and on-device data storage. Historical records can be exported via USB for auditing or reporting. Leveraging 4G wireless connectivity, all data is synchronized to Kainaifu’s cloud-based management platform, allowing facility managers to monitor conditions and receive instant alerts remotely—significantly reducing operational costs and manual intervention. Thanks to its ultra-low maintenance design, minimal consumables, and long-term stability, the KNF-400B offers a sustainable, cost-effective solution for intelligent water quality management. This deployment marks another successful application of Kainaifu’s smart sensing technology in the hospitality sector.Kainaifu continues to advance water safety through innovation, delivering robust, user-friendly monitoring systems that protect public health and enhance operational efficiency worldwide.

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12-18 2025

Case Study: Kainafu Enables Urban Drainage Compliance with IoT-Based Monitoring in Dongguan, China

The KNF-400D sewage well drainage terminal monitoring system is composed of online digital sensors, wireless acquisition terminals, and the Kainafu monitoring cloud platform. The product is modular and the equipment is designed with low power consumption. Easy to use and simple to install, it only takes 15 minutes to install. There is no need to break the road for construction. It can be directly installed on the well wall without secondary pollution. It has low maintenance, good reliability and can be laid on a large scale. The sensor can be optionally equipped with a self-cleaning device to cope with harsh environments. Users can match different types of sensors according to their own needs, such as water level, water temperature, COD, ammonia nitrogen, turbidity, conductivity, dissolved oxygen, pH, oil in water, etc.

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12-18 2025

Kainafu Technology Deploys Real-Time Wastewater Monitoring System at BYD’s Daya Bay Facility

Kainafu Technology installed a real-time wastewater monitoring system at BYD’s Daya Bay facility, enabling compliant, automated effluent management for one of China’s leading EV manufacturers. Main monitoring indicators: (pH, COD, ammonia nitrogen, flow rate, conductivity, etc.)Supports 4G/ optical fiber transmission, with data directly connected to the pollution source monitoring platform of Huizhou CityIt has an automatic cleaning function and is suitable for outdoor industrial environments

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12-18 2025

No More Guesswork: Hotel Staff Now Receive Instant Alerts for Pool Water Imbalances

The KNF-400B-1 swimming pool water quality monitoring system is an online water quality monitoring system developed based on the "Swimming Pool Water Quality Standard" CJ244-2007, mainly to meet the hygiene requirements of water quality and provide a basis and support for strengthening water quality safety management. It mainly implements online and early warning for turbidity, residual chlorine, PH, temperature and ORP of water quality. It is also equipped with a dosing control device, which can automatically add chemicals to the residual chlorine and PH dosing tanks. The product adopts a modular design, which is easy to install and maintain

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12-18 2025

Field Installation Case: How an IP68 Ultrasonic Level Gauge Monitors Flood Channels in Mountainous Areas

Ultrasonic level gauge, level meter, water level meter -[KNF-130] is suitable for water level monitoring in lakes, rivers, reservoirs, open channels, tidal water levels, etc. The RS485 output can be conveniently connected to the upper computer PLC to achieve the purpose of real-time monitoring and early warning control.

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12-18 2025

Real-World Installation: Online Water Quality Monitoring System at a Textile Factory Drainage Outlet

The KNF-400D sewage well drainage terminal monitoring system is composed of online digital sensors, wireless acquisition terminals, and the Kainafu monitoring cloud platform. The product is modular and the equipment is designed with low power consumption. Easy to use and simple to install, it only takes 15 minutes to install. There is no need to break the road for construction. It can be directly installed on the well wall without secondary pollution. It has low maintenance, good reliability and can be laid on a large scale. The sensor can be optionally equipped with a self-cleaning device to cope with harsh environments. Users can match different types of sensors according to their own needs, such as water level, water temperature, COD, ammonia nitrogen, turbidity, conductivity, dissolved oxygen, pH, oil in water, etc.

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PH Sensor

ORP Sensor

COD Sensor

Water Turbidity Sensor

Conductivity Water Sensor

Dissolved Oxygen Sensor

Suspended Solids Sensor

Residual Chlorine Sensor

Ammonia Nitrogen Sensor

Chlorophyll A Sensor

Oil In Water Sensor

Blue Green Algae Sensor

Multi Parameter Water Quality Sensor

Water Level Gauge

Radar Water Level Sensor

Portable Water Quality Analyzer

Water Quality Monitoring Equipment

Aquaculture Monitoring System

River Monitoring System

Wastewater Monitoring System

PH Sensor

ORP Sensor

COD Sensor

Water Turbidity Sensor

Conductivity Water Sensor

Dissolved Oxygen Sensor

Suspended Solids Sensor

Residual Chlorine Sensor

Ammonia Nitrogen Sensor

Chlorophyll A Sensor

Oil In Water Sensor

Blue Green Algae Sensor

Multi Parameter Water Quality Sensor

Water Level Gauge

Radar Water Level Sensor

Portable Water Quality Analyzer

Water Quality Monitoring Equipment

Aquaculture Monitoring System

River Monitoring System

Wastewater Monitoring System

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Shenzhen Kainafu Technology Co., Ltd.

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