ISO9001:2015 quality certified

KWS280 Online high performance-price ratio nitrite in water sensor



KWS280 Online nitrite in water sensor is used in environmental water quality monitoring, acid/alkali/salt solution, chemical reaction process, industrial production process, especially in beverage food and it can meet the requirements of online nitrite measurement for most industrial applications and food processing field.


  • Signal output: RS-485 (Modbus/RTU protocol).
  • Convenient connection to third-party equipment such as PLC, DCS, industrial control computer, general controller, paperless recording instrument or touch screen.
  • Double high-impedance differential amplifier with strong anti-interference and fast response.
  • The patented sonde for food application.
  • Easy to install: 3/4 NPT pipe thread for easy submersible installation or installation in pipes and tanks.

Technical Specifications

Measuring Range0.1-1000mg/L Can be expanded by customer order.
AccuracyNitrite: ±2.5% F.S.


Temperature Range0 ~ 50℃
Work Pressure<0.2MPa
Temperature Compensationautomatic temperature compensation
OutputRS-485, MODBUS protocol
Power Supply12~24VDC ±10%
Wetted Part MaterialPP
InstallationImmersion mounting, 3/4 NPT thread
Cable Length5 m, customizable
Calibration MethodTwo-point calibration
Power Consumption<0.5W
Ip GradeIP68


KWS280 Online nitrite in water sensor
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