Product Introduction/ Product introduction
The buoy based water quality monitoring system KNF-407S integrates various parameter sensors on the buoy and places them in the water body to be monitored. It can be installed and deployed without lifting, suitable for real-time online monitoring of unmanned water areas in the wild. Utilizing modern wireless communication technology to achieve data transmission and remote control between the buoy system and the Kenaf monitoring platform, realizing online automatic monitoring and early warning of water quality in fields such as rivers, reservoirs, lakes, and aquaculture.
The system adopts advanced material technology, solar power supply technology, sensor online monitoring technology, data acquisition and cloud platform monitoring technology internally, combined with rich field operation and maintenance experience to manufacture a monitoring system and modern water monitoring methods. The buoy monitoring system can observe water quality, meteorology, and other contents continuously and fixed-point around the clock, and transmit data to the central station in real time.
Characteristics of KNF-407S Buoy Water Quality Monitoring System/ Features
- Low center of gravity design, more stable and reliable, maximum buoyancy of 40kg
- Modular design, strong scalability, and extremely simple maintenance in the later stage
- Measurement indicators can be selected based on sensors, and monitoring does not require reagents
- The sensor is equipped with an automatic cleaning device, which requires very low maintenance and is extremely convenient for later operation and maintenance
- Optional: GPRS, RS485, NB and other data transmission methods
- Equipped with the Kenaf IoT data management cloud platform


Application scope of KNF-407S buoy water quality monitoring system/ Scope of application
2. Lakes, reservoirs, water sources and other fields
3. Aquaculture, nearshore aquaculture and other aquaculture industries
4. Sewage, wastewater discharge and other fields
Product parameters/ PARAMETER
Parameter indicators |
PH |
turbidity |
Ammonia nitrogen |
temperature |
Dissolved oxygen |
COD |
conductivity |
chlorophyll |
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measuring principle |
GLASS |
90ºScattered light |
Ion selection method |
thermocouple |
fluorophotometric |
spectrometry |
Conductivity cell method |
optics |
measuring range |
0-14ph |
0-1000NTU |
0-1000mg/L |
0-50℃ |
0-20mg/L |
0.3-500mg/L |
0-5000µS/cm |
0-500ug/L |
resolution |
0.01ph |
1NTU |
0.1mg/L |
0.1℃ |
0.01mg/L |
0.01mg/L |
1µS/cm |
0.1ug/L |
accuracy |
±0.05ph |
±2%F.S. |
±5%F.S. |
±0.5℃ |
±2%F.S. |
±5%F.S. |
1%µS/cm |
±5%F.S. |
power consumption |
About 0.3w |
About 0.6w |
About 1.2w |
Inside the electrode |
About 0.5w |
About 1.5w |
About 0.5w |
About 1.2w |
Data reporting |
The adjustable reporting time interval can be uploaded to the cloud via GPRS |
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data output |
RS485 (Modbus RTU protocol), 4G wireless output, NB |
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working voltage |
AC220V @DC12-24V |
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Maintenance Cycle |
About 3-12 months or depending on the on-site situation |
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Cloud platform monitoring |
Water quality cloud platform monitoring software, which can easily and quickly remotely view, download, control, and analyze data, and can set real-time alarms |
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Software and Certification |
Having software registration certificate, ISO9001, ISO14001, CMA testing reports |
Kenaf Cloud Platform/ IoT water quality monitoring cloud platform
Kenafu Technology's "Water Quality Monitoring Cloud Platform" is an efficient, stable, and secure application platform built between IoT applications and monitoring devices. The main monitoring center provides an intuitive user interface, through which you can manage all devices of your user, such as querying real-time data, historical data, connection status, alarm status, alarm records, real-time positioning, historical trajectory, flow query, switch control, data distribution, and other functions.