The ERUN-ST series of laboratory benchtop boiler feed water and boiler water quality testing instruments, reagents, and vessels developed and produced by Erun Group are designed with reference to GB/T1576 Water quality for industrial boilers, and are suitable for steam turbine boilers, steam boilers, hot water boilers, fluidized bed boilers, steam-water boilers, steam drum furnaces, and waste heat boilers. Analysis and determination of water vapor quality such as raw water, boiler feed water, softened water, desalted water, make-up water, boiler water, back water, etc.

The ERUN series industrial recirculating cooling water water quality testing instrument for laboratory developed and produced by Erun Group is a solution designed in accordance with the "GB/T 50050-2017 Code for design of industrial recirculating cooling water treatment". The main detectable parameters of the water quality testing instrument of recirculating water laboratory include pH value (25 °), conductivity, turbidity, suspended solids, total hardness, total alkalinity, chloride ions, total iron, total heterotrophic bacteria, copper ions, oil content, free chlorine, NH3-N, COD, etc. The industrial cooling water analyzer is suitable for testing the water quality of industrial recirculating cooling water in fields such as steelmaking, synthetic ammonia, thermal power plants, casting, steel rolling, blast furnaces, converters, and petroleum smelting using indirect open cooling systems, indirect closed cooling systems, and direct cooling systems.

Benchtop multi-parameter drinking water analyzer ERUN-ST-MU97 can be selected according to user needs. It is designed with reference to the "GB 5749-2022 Hygiene Standard for Drinking Water" and can detect toxicological indicators including arsenic, lead, hexavalent chromium, cyanide, etc.; color, turbidity, Sensory properties and general chemical indicators such as PH, iron, copper, manganese, and CODMn; conventional indicators and requirements for disinfectants such as residual chlorine, total chlorine, and chlorine dioxide are widely used in the testing of routine items in tap water and drinking water.

The ERUN series water quality laboratory testing instruments of secondary water supply plant developed and produced by Erun Group are designed with reference to the "GB 17051". The water quality testing instrument for drinking water supply stations is suitable for testing the water quality of drinking tap water, including pressurized equipment and high-level water tanks (pools) combined water supply, variable frequency speed regulation water supply, stacked water supply, and pressure water supply. The laboratory water quality analyzer of the secondary water supply plant can mainly test parameters including chromaticity, turbidity, pH, total coliforms, aerobic bacterial count, residual chlorine, total hardness, chloride, nitrate nitrogen, volatile phenols, cyanide, arsenic, hexavalent chrome, iron, manganese, lead, ammonia nitrogen, nitrite nitrogen, permanganate index, etc.

The ERUN-SP-M9000 series portable multi-parameter water pollutant rapid testing instrument for environmental enforcement developed and produced by ERUN Group is suitable for ecological and emergency enforcement departments to use in response to sudden water pollution incidents. The emergency enforcement portable water pollutant analyzer can quickly measure conventional water pollution parameters such as COD, ammonia nitrogen, total phosphorus, total nitrogen, metal parameters (chromium, hexavalent chromium, copper, nickel, zinc, iron) in water. The ecological environment multi-parameter water quality rapid testing instrument can be used for rapid inspection of outdoor sewage leakage pollution. It is equipped with a thermal printer, and the measurement index concentration can be directly read, stored, and printed. The USB interface can upload the measurement results to the supporting computer software for statistical analysis.

The ERUN-SP-M9000 series of surface water conventional five-parameter portable water quality rapid tester developed and produced by Erun Group is suitable for on-site rapid analysis of surface water environmental quality. The portable conventional five-parameter testing instrument for surface water refer to "GB 3838" standards, it can quickly detect five conventional water quality parameters: temperature, pH, dissolved oxygen, turbidity and conductivity of surface water such as rivers and lakes. The multi-parameter rapid water quality tester for rivers and lakes can be used for rapid testing of outdoor on-site surface water quality. It can help users quickly understand and grasp water quality conditions, and is of great significance for early warning of major or mobile water pollution incidents.

The ERUN-SP series portable steam boiler and hot water boiler water quality rapid testing instrument and reagent device developed and produced by Erun Environmental Protection Group is designed based on the national standard of 《GB/T 1576-2018 Water quality for industrial boilers》. It can be used for rapid testing of raw water, softened water, desalted water, boiler feed water, make-up water, boiler water, back water, etc. in natural circulation steam boilers and steam water dual-purpose boilers that use external or internal water treatment, through flow and direct flow steam boilers, hot water boilers.

The ERUN series water quality analysis and testing instrument of recirculating cooling water system in chemical palnt developed and produced by Erun Group is a solution designed in accordance with the GB50648. The chemical process cooling water quality testing instrument is suitable for testing the water quality of chemical industry recirculating cooling water using indirect open cooling systems, indirect closed cooling systems, direct open cooling systems in petrochemical, agricultural chemical, chemical pharmaceutical, polymer, coating, oil and fat, plastic, synthetic fiber, rubber, pharmaceuticals and other chemical industries. The main parameters that can be tested by chemical industry recirculating water quality analyzer include pH, conductivity, turbidity, suspended solids, total hardness, total alkalinity, chloride ions, iron, copper, ammonia nitrogen, COD, heterotrophic bacteria, oil, total phosphorus, residual chlorine, etc.

The ERUN series rapid testing instrument for multi-parameter water quality of drinking water source water developed and produced by Erun Group is a solution designed specifically for on-site rapid testing of various water quality of drinking water sources in accordance with the CJ3020 national standard. The portable multi-parameter source of water quality testing instrument can mainly test parameters including chromaticity, turbidity, pH, volatile phenols, anionic surfactant, ammonia nitrogen, nitrate nitrogen, permanganate index, total coliforms, metal parameters, inorganic salts, etc. The rapid analyzer for water quality of drinking water sources can not only be used for the testing of water quality of centralized drinking water sources in urban and rural areas (including water sources for self provided domestic drinking water by various units), but also for the analysis of water quality of dispersed drinking water sources.

The ERUN series laboratory water quality analyzer of urban and rural drinking water plant developed and produced by Erun Group for urban and rural centralized water supply plant is a solution designed with reference to the "Sanitary Standard for Drinking Water Plant". The urban and rural water station drinking water testing instrument include turbidity, chromaticity, visible substances, CODMn, aerobic bacterial count, total coliforms, thermotolerant coliforms, residual chlorine. The laboratory water quality analyzer of centralized water supply plant is suitable for testing the quality of drinking tap water in urban and rural areas such as large-scale water supply projects and small-scale centralized water supply projects.

The ERUN series laboratory water quality testing instruments, vessels, and accessories for sewage treatment plants developed and produced by Erun Group are designed specifically for daily analysis and testing of water quality in sewage treatment plants (stations). The wastewater treatment plant water quality laboratory equipment include basic control items such as COD, BOD5, SS, oil, anionic surfactant, total nitrogen, ammonia nitrogen, total phosphorus, chromaticity, pH, and fecal coligroup count. The laboratory testing instruments for wastewater treatment plants not only include benchtop and portable water quality testing instrument hosts, but also include digestion instruments, colorimetric tubes, incubators, reagents, pipettes, volumetric flasks and other vessel accessories.

The ERUN-SP series rapid testing instrument for basic water quality items in five types of surface water developed and produced by Erun Group is suitable for quick testing of on-site water quality of rivers, lakes, canals, channels, reservoirs and other surface waters. The multi parameter rapid testing instrument for Class I to V surface water can test the concentration values of basic water quality parameters in GB3838 surface water environmental quality standard, including water temperature, pH value, dissolved oxygen, COD, BOD, ammonia nitrogen, total phosphorus, total nitrogen, heavy metals, inorganic salts, petroleum, fecal coliform bacteria, etc. The portable five types of water quality basic item analyzer can be used for centralized surface water sources, habitats of rare aquatic organisms, spawning grounds/wintering grounds for fish and shrimp, aquaculture areas and other fishery water bodies, as well as swimming areas, agricultural water areas and general landscape requirements water bodies, to determine whether it is a Class I, II water body, or Class III, IV, and V water body.