Brand：Erun 
Name：CDOM Online Water Quality Monitor
Model：ERUN-SZ4-A-J5C
Parameter：CDOM(UV fluorescence analysis)

Brand：Erun 
Name：Chlorophyll online water quality monitor
Model：ERUN-SZ4-A-L3
Parameter：Chlorophyll a(fluorescence method)

Brand：Erun 
Name：On-line water quality monitor for blue-green algae
Model：ERUN-SZ4-A-L2B
Parameter：Cyanobacteria (blue-green algae)

Brand：Erun 
Name：Water quality TOC online analyser
Model：ERUN-SZ4-A-J3
Parameter：TOC

Brand：Erun 
Name：Online Intelligent Water Corrosion Rate Monitor
Model：ERUN-SZ4-A-N7
Parameter：corrosion rate

Brand: Erun
On-line water quality phosphate analyzer
Model: ERUN-SZ3-E3
Parameter: phosphate

Brand：Erun
Name：Water quality online monitor
Model：ERUN-SZ3-1
Parameters: customized

Brand: Erun
Multi-parameter water quality online monitoring system
Model: ERUN-SZ-M630
ERUN-SZ-M630 multi-parameter water quality online monitoring system developed and produced by Erun Environmental Protection can detect the concentration of pollutants such as COD, ammonia nitrogen, total phosphorus, total nitrogen, permanganate index and other pollutants in the body of water, and can be integrated with probe-type sensors such as pH, DO, conductivity, turbidity, SS, etc., which has the characteristics of high-integration and low-cost. Friendly human-computer interaction, 7-inch color touch screen, applications based on Linux open source system. Support USB, TF card, program upgrade, data reading convenient, data storage can be expanded.

Brand：Erun
Name：Water quality calcium ion online analyser
Model：ERUN-SZ4-A-M7
Parameters: Calcium ion (electrode method)

Brand：Erun 
Name：On-line Water Quality Wisdom Tracer 
Model：ERUN-SZ4-A-N8 
Parameter：Tracer（Fluorescence Method） 

Brand：Erun
Name：Water quality online monitor
Model：ERUN-SZ3-1
Parameters: customized

Brand: Erun
Multi-parameter water quality online monitoring system
Model: ERUN-SZ-M631
ERUN-SZ-M631 multi-parameter water quality online monitoring system developed and produced by Erun Environmental Protection adopts 3-in-1 module design, which can detect 3 parameters of COD, ammonia nitrogen and total phosphorus, and can integrate probe-type sensors such as pH, DO, conductivity, turbidity and SS, etc., which is featured by high integration and low cost, and there is no need for an industrial controller, and all sensors can be controlled by a single screen and the screen is equipped with a 4G Transmission module.