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
Water quality silicate on-line analyzer
Model: ERUN-SZ3-C5
Parameter: silicate

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

Brand：Erun
Name：Water Hardness Analyzer
Model：ERUN-SZ3-B2
Parameters: Hardness(EDTA titration)

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

Brand: Erun
Water quality sodium Na online analyzer
Model: ERUN-SZ3-M6
Parameter: Sodium

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.

Erun Environmental Protection provides special reagents for total chromium content water quality tester. One set of reagents can be used 100 times and should be stored sealed at room temperature and away from light.