12 years instrument development manufacturer.

  • Products Details

Having absorbed the best and the brightest to join us, Shenzhen Wanyi Technology Co., Ltd. finds it easier and more efficient to develop products on a regular basis.KNF-108A cod sensor water quality sensor is the newest result combining all the efforts and wisdom of our employees. In today's era,KNF-108A cod sensor water quality sensor has proved its value in the field(s) of Other Test Instruments. We regard KNF-108A cod sensor water quality sensor product features as its core competitiveness. Adopting high-quality raw materials purchased from reliable suppliers,ONETEST has the guaranteed quality and advantages of Negative oxygen ion detector, radiation detector, nuclear radiation sensor probe, online water quality monitoring system, water quality monitoring sensor, gas detector, outdoor air quality monitoring system. Moreover, it has a look designed by our creative designers, making it highly attractive in its appearance.

Warranty:1 yearCustomized support:OEM, ODM, OBM
Place of Origin:shenzhenBrand Name:KAINAFU

Product Description

   The KNF108A COD sensor adopts 254nm and 365nm dual-channel light sources, which can automatically correct the interference of suspended substances, with automatic temperature compensation, so as to achieve more stable and reliable measurement values, without reagents, no secondary pollution, and more economical and environmentally friendly. It can continuously monitor water quality online and automatically compensate for turbidity interference. With an automatic cleaning device, it has good stability even for long-term monitoring.


1.With automatic temperature compensation.
2.Output standard Rs485 digital signal. It is convenient to connect to third-party equipment such as PLC, DCS, industrial control computer, paperless recording instrument or touch screen.
3.Parameter setting is more convenient and quicker. The calibration function can provide a simple and quick calibration method.
4.It can be equipped with the real-time data transmission of the Internet of Things cloud platform to allow you to obtain timely and accurate data for monitoring water bodies.

Technical index

Measuring principle Dual optical path 254nm and 365nm  Measuring range 0.5-100,500mg/L
 Precision  <5%   Resolution  0.01mg/L 
 Protection level  IP68  Maximum pressure  1bar
 powered by  DC12V+/-5%, current <50mA (without cleaning brush)  Material  POM and 316L stainless steel
 size  55mm diameter and 175mm length  cable length  Standard 5 meters


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Packaging & Shipping

KNF-108A cod sensor water quality sensorKNF-108A cod sensor water quality sensorKNF-108A cod sensor water quality sensor


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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