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RS485 Magnesium Ion Water Quality Detector with Modbus RTU Output
This product is an industrial grade RS485 magnesium ion sensor that uses Modbus RTU digital communication to achieve online magnesium ion concentration meter function. Featuring high precision and corrosion resistance, it is suitable for monitoring magnesium ions in industrial wastewater, softening boiler water, and real-time analysis of water hardness. As a digital magnesium ion probe, it can be directly connected to the automation control system, which is stable and reliable, meeting the long-term operation and maintenance needs of environmental protection and industrial field for online monitoring of water quality magnesium ions.

Model No.:ZW-MG-PR(RS485)
Use: Monitor magnesium ion
Power Supply Mode: DC12/24V
Measuring Accuracy : ± 10% of the reading
Certificates: CE,ROHS,FCC,ISO and 11 patents certifications
Customized support: OEM, ODM
Warranty: 1 Year

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Chlorophyll Water Quality Sensor With RS485 Output Using Fluorescence Method
The RS485 fluorescence chlorophyll sensor adopts advanced fluorescence technology and is designed specifically for online water quality monitoring. Built in self-cleaning brush head, effectively preventing biological attachment and achieving maintenance free long-term operation. Supports MODBUS-RTU protocol and can directly output chlorophyll-a concentration data. The IP68 protection level is suitable for freshwater, marine aquaculture, eutrophication monitoring of lakes and rivers, and water source warning. High precision 0-400ug/L range, plug and play, is an ideal choice for in-situ monitoring and environmental protection projects.

Model No.:ZW-CHL-PR(RS485)
Use: Monitor Chlorophyll
Power Supply Mode: DC12/24V
Measuring Accuracy : ±3% of the reading
Certificates: CE,ROHS,FCC,ISO and 11 patents certifications
Customized support: OEM, ODM
Warranty: 1 Year

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RS485 COD Probe Self-Cleaning Water Quality Sensor
Many organic compounds in water absorb ultraviolet light. The concentration of dissolved organic pollutants can be accurately measured by detecting their absorbance at 254 nm. The ZW‑COD‑PR online COD sensor uses dual light sources: one UV light for COD measurement and one reference light for turbidity compensation. With optical path attenuation correction and algorithm optimization, it effectively reduces interference from suspended particles and provides stable and reliable measurement.

Model No.:LW106D-COD（RS485）
Use: Measure COD of water

Power Supply Mode: Battery or External DC

Output Signal: RS485/4-20mA
Certificates: CE,ROHS,FCC,ISO and 11 patents certifications
Customized support: OEM, ODM
Warranty: 1 Year

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NH3 Water Quality Sensor RS485 Auto Temperature Compensation
ZW-NHN-PRA is an integrated online ammonia nitrogen sensor based on a PVC membrane ammonium ion-selective electrode. It features real-time temperature compensation for fast, simple, accurate and cost-effective measurement of ammonium ions in water. The sensor supports RS‑485 and Modbus/RTU for easy integration with PLC, DCS, industrial controllers and other third‑party devices. Its patented ion probe with a slow‑leak reference system ensures high stability and extended electrode life. With 3/4 NPT threads and IP68 protection, the sensor enables easy installation in submerged, pipeline or tank environments.

Model No.:LW107D-NHN(RS485)
Use: Measure NHN of water

Power Supply Mode: Battery or External DC

Output Signal: RS485/4-20mA

Certificates: CE,ROHS,FCC,ISO and 11 patents certifications
Customized support: OEM, ODM
Warranty: 1 Year

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Fluorescence method RS485 blue green algae sensor 0-300K cells/mL
The ZW-BGA-PR fluorescence method blue-green algae sensor adopts high-precision fluorescence principle, which can monitor the concentration of algae in water in real time (0-300Kcells/mL), with a reading accuracy of ± 3% and rapid response (T90<30s). Equipped with automatic temperature compensation and RS485 Modbus output, supports two-point calibration, and does not require frequent cleaning. 316L stainless steel material is corrosion-resistant and suitable for fields such as drinking water, surface water, and aquaculture.

Model No.:ZW-BGA-PR(RS485)
Use: Monitor Cyanobacteria
Power Supply Mode: DC12/24V
Measuring Accuracy : ±3% of the reading
Certificates: CE,ROHS,FCC,ISO and 11 patents certifications
Customized support: OEM, ODM
Warranty: 1 Year

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RS485 Turbidity Sensor 0-1000 NTU for Raw Wastewater
The ZW-TB-PR integrated online turbidity sensor adopts the scattered light detection principle. During operation, a incident light beam penetrates the water sample. Turbidity particles within the sample scatter the light beam. The sensor measures the intensity of light scattered at 90 degrees to the incident path. By correlating the measured data with the built-in calibration standard, the system derives the true turbidity value. Post-processing includes linearization algorithm implementation, ensuring the final output is accurate, stable, and ready for system integration.

Model No.:LW105D-TB(RS485)
Use: Measure Turbidity of water

Power Supply Mode: Battery or External DC

Output Signal: RS485/4-20mA

Certificates: CE,ROHS,FCC,ISO and 11 patents certifications
Customized support: OEM, ODM
Warranty: 1 Year

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RS485 Residual Chlorine Sensor No Reagent Low Maintenance
This product is specially designed for the continuous online monitoring of residual chlorine in aqueous solutions. It is widely applied in drinking water treatment plants, canning factories, water distribution networks, swimming pools, cooling circulating water systems, and various water treatment projects, ensuring stable and reliable water quality detection.

Model:ZW-YL-PR
Use: Measure Chlorine of water
Power Supply: 12-24VDC
Output Signal: RS485/4-20mA
Certificates: Measurement Certification
Customized support: OEM, ODM
Warranty: 1 Year

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RS485 Output Online ORP Water Quality Sensor, IP68 Waterproof
ZW-ORP-PR industrial-grade online ORP water quality sensor is specially designed for industrial scenarios. It has a measurement range of -1500～+1500mV and an accuracy of ±20mV. It supports RS485 (Modbus/RTU) communication and can seamlessly connect to industrial control equipment such as PLC and DCS. The product is equipped with a patented ORP electrode, whose service life is twice that of conventional electrodes. It has an IP68 high protection rating and a 3/4 NPT thread design, which is suitable for various installation methods. With strong anti-interference ability and fast response, it is widely used in online ORP detection in scenarios such as environmental water quality monitoring, chemical reactions, and industrial production.

Model No.:ZW-ORP-PR(RS485)
Use: Monitor Oxidation-Reduction Potential
Power Supply Mode: DC12/24V
Measuring Accuracy : ±20 mV
Certificates: CE,ROHS,FCC,ISO and 11 patents certifications
Customized support: OEM, ODM
Warranty: 1 Year

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