12 years instrument development manufacturer.

  • Products Details

Shenzhen Wanyi Technology Co., Ltd. has been manufacturing, exporting and supplying excellent quality KNF-102A online sea water salinity sensors. The use of in KNF-102A online sea water salinity sensors manufacturing has allowed us for more efficient use of resources and personnel.The product is highly recognized in the application field(s) of PH Meters. Guided by market forces,Shenzhen Wanyi Technology Co., Ltd. will use a comprehensive range of measures to enhance our strength. For example, we will invest heavily in the R&D project and keep developing new products so as to lead the market trend.

Warranty:1 yearType:Water salinity sensor
Customized support:OEM, ODM, OBMPlace of Origin:Shenzhen
Brand Name:KAINAFUModel Number:KNF-102A
Usage:Used for all kinds of water salinity measurementTheory:Quadrupole
Output:RS485Measuring range:0-100.00ppt
Resolution:0.01ppttemperature range:0-60.0℃
Temperature:0.1℃Precision:<1.5% F.S. or 2% of reading, whichever is smaller
powered by::12 VDCsize:Diameter 25mm*135mm (length)

Product Description

       The salinity digital sensor designed by our company for aquaculture, river sewage, seawater salinity, environmental protection engineering and other industries can be used to measure the change of salinity value in the aqueous system. It has a standard RS485 Modbus RTU protocol interface function and can communicate with the host computer remotely.


1.Isolated power supply design, data stability, strong anti-interference ability
2.4-pole stainless steel, corrosion-resistant alloy salinity sensor housing material: POM+PPS
3.Corrosion resistance, high stability, suitable for continuous monitoring of fresh water and sea water
4.Built-in temperature sensor with data compensation function

KNF-102A online sea water salinity sensors

Technical index

Measurement type Salinity in water Measuring range




temperature range


Temperature resolution


sensor type 4-pole sensor
Precision <1.5% F.S. or 2% of reading, whichever is smaller Data compensation Default 25.0℃ compensation temperature, 2%/℃ adjustable
communication method RS485 interface*1 powered by 12 VDC
Protocol Standard MODBUS-RTU protocol Power consumption

30mA @12 VDC

size Diameter 25mm*135mm (length)    



KNF-102A online sea water salinity sensorsKNF-102A online sea water salinity sensorsKNF-102A online sea water salinity sensorsKNF-102A online sea water salinity sensorsKNF-102A online sea water salinity sensors

Packaging & Shipping

 KNF-102A online sea water salinity sensors.KNF-102A online sea water salinity sensors

Company Information

      Shenzhen Kainafu Technology Co., Ltd. is a high-tech and environmentally friendly technology enterprise integrating R&D, sales, after-sales and technical consulting. Composed of 16 senior engineers with many years of market application experience and maintenance experience, Shenzhen Canafor Technology Co., Ltd. has passed ISO9001 and ISO14001 system certification, and has a number of patents such as water quality monitoring cloud platform software and system design.

KNF-102A online sea water salinity sensorsKNF-102A online sea water salinity sensorsKNF-102A online sea water salinity sensors

Our Services

* Standardized workshop and calibration process
* Professional quality inspection of 4-12 employees
* Fast delivery, free technical assistance
* Warranty 1 year



 What price can I get?

 We usually quote within 12 hours after receiving your inquiry. If you are very anxious to get the price, please let us know in your email so that we can contact and communicate in time.

 How can I get samples to check the quality of your products?

 fter confirming the price, you can request samples to check the quality of our products. As long as you can afford the express freight, we will provide you with samples.

What is your business scope?

 We mainly produce and sell air quality and water quality instruments, such as water quality sensors, water quality online monitoring equipment, air anion detectors, radiation detectors, gas detectors and some of our agents. Welcome to consult

What is your delivery time and warranty period?

Within 5-7 working days after payment is confirmed, customized products need to be discussed in detail, and the warranty period is one year











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Have a professional after-sales team to respond to you 24 hours a day. We are committed to producing the best quality products at the most competitive prices. Therefore, we sincerely invite all interested companies to contact us for more information.

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