Online Water Quality Nitrite Monitor RS-485 Modbus/Automatic Temperature Compensation/316L Material/0~2.000 mg/L
Online Water Quality Nitrite Monitor
Product Introduction:
The online nitrite ion sensor is an intelligent sensing device designed specifically for water quality monitoring scenarios. It uses PVC membrane ion selective electrode method to quickly and accurately measure the concentration of nitrite in water. The device is equipped with an automatic temperature compensation function, which effectively reduces the impact of environmental temperature changes on measurement results and ensures stable and reliable data. The whole machine adopts 316L stainless steel shell with a protection level of IP68. It can be immersed in pipelines, water tanks or natural water bodies for a long time and is suitable for complex working conditions of 0-40 ℃ and ≤ 0.2MPa. The product has undergone 72 hours of aging and calibration before leaving the factory, and is ready to use immediately, meeting the online monitoring needs of environmental protection, aquaculture, industrial circulating water, drinking water pipe networks, and other fields.
Core Features:
- High precision measurement: range 0~2.000 mg/L, resolution 0.001 mg/L, accuracy ± 5%, meeting the requirements for monitoring trace changes in nitrite.
- Stable and durable: patented reference system (salt bridge micro pressure structure) extends electrode life; The shell material is 316L, which has strong corrosion resistance.
- Flexible output: Standard RS-485 (Modbus RTU) interface, optional 4-20mA current output, convenient for connecting to third-party devices such as PLC, DCS, touch screen, etc.
- Easy installation: 3/4 NPT thread, supports immersion installation (tilt ≥ 15 °), comes standard with 5-meter waterproof cable, easy to deploy on site.
- Low power design: Powered by 12-24VDC, with a power consumption of only 0.2W, it can operate continuously for a long time.
RS485 Water Quality Nitrite Ion Sensor:
| Model | ZW-NO2-PR | |
| Measuring principle | ion selection method | |
| Range and resolution | 0~2.000 mg/L | 0.001mg/L |
| Accuracy | ±5%;±0.3℃ | |
| Calibration method | Two-point calibration | |
| Cleaning method | / | |
| Temperature compensation | Automatic temperature compensation (Pt1000) | |
| Output method | RS-485(ModbusRTU),4-20 mA(Optional) | |
| Storage temperature | -5~40℃ | |
| Working conditions | 0~40℃,≤0.2MPa | |
| Shell material | 316L | |
| Installation method | immersion installation,3/4NPT | |
| Power consumption | 0.2W@12V | |
| Power supply | 12~24VDC | |
| Protection level | IP68 | |
Product Display:
Application:
- Drinking water pipe network: Monitor the risk of nitrite exceeding the standard to ensure water supply safety.
- Aquaculture: Real time tracking of nitrite concentration to prevent fish and shrimp poisoning.
- Industrial circulating water: Control water quality indicators to reduce equipment corrosion and microbial growth.
- Wastewater treatment: Evaluate the effectiveness of denitrification processes and optimize operating parameters.
- Environmental surface water: Assist in identifying sources of water pollution.
Why RS485 for Water Quality Nitrite Ion Monitoring?
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Industrial-Grade & Stable Data Transmission: RS485 delivers robust anti-interference performance for real-time, reliable hardness data transmission in harsh environments (e.g., industrial boilers, municipal water supply), ensuring accurate monitoring.
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Easy Integration & Scalability:Supports multi-node networking, seamlessly integrates with mainstream PLC/RTU systems, enabling flexible deployment and reducing system integration costs and maintenance complexity.
Production Process:
FAQ:
1.Are you manufacture?
A:Yes,we are Tranmitter manufacturer and exporter in China with more than 10 years of CE,ROHS,FCC,ISO and 11 patents experience.
2.Do you offer OEM services?
A:Yes,we can provide you with OEM services and design housings and logos.
3.DO you offer free samples?
A:Sorry,we don't offer free samples.After ordering in bulk,we will deduct the sample fee from the second order.
Why choose us:
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Strong R & D: 30+ Senior experts and highly educated personnel formed a R & D team, heavy investment, master a number of core technologies and patents.
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Professional and effective solutions: for smart environmental protection, agriculture and other fields, to provide customized compound networking solutions.
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Full range of products: covering the whole industry chain products from data collection to platform services to meet diverse needs.
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Excellent quality: we have perfect quality control system, strictly quality control each production link, low defective rate.
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Good service: 7×24 hours fast response, Professional pre-sale, sale, after-sales team support.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.




