Erun Environmental Protection's independently developed and produced film-coated digital disinfectant sensor is a three-electrode measurement system with a high-purity gold electrode as the working electrode. The electrode has a built-in high-precision potentiostat that can maintain the working electrode potential stable. Disinfectant components such as hypochlorous acid undergo oxidation-reduction reactions at the working electrode, and the generated current follows Faraday's law, thereby measuring the disinfectant concentration.

Featuring a brand-new optical path design, premium components sourced internationally, superior instrument performance, and a high-resolution 10.1-inch full-color capacitive touchscreen, this instrument greatly meets the analytical needs of even the most demanding professional users. It can be widely used in research and production across various fields, including organic chemistry, biochemistry, pharmaceutical analysis, food testing, medical and health care, environmental protection, and life sciences.

Brand: ERUN
Name: Water Quality Chlorine Dioxide Online Analyzer
Model: ERUN-SZ4-A-K4
Parameter: Chlorine Dioxide

Brand： Erun
Benchtop sodium ion analyzer for water quality testing
Model： ERUN-ST3-M6
The ERUN-ST3-M6 desktop sodium ion analyzer, manufactured and sold by Erun Environmental Protection, is an improved version of previous models that featured analog displays, knobs, switches, and non-intelligent designs. Equipped with specialized electrodes for ppb-level sodium ion measurement in laboratories, its performance in static measurements in beakers is significantly improved compared to traditional sodium meters. With proper electrode cleaning during use, satisfactory results can be easily obtained. It can be widely used for continuous monitoring of sodium ions in solutions in various industries, including thermal power, chemical and fertilizer, metallurgy, environmental protection, pharmaceuticals, biochemistry, food, and tap water.

Brand： Erun
Water Quality Silicate Analyzer
Model： ERUN-ST3-C5
The ERUN-ST3-C5 Silicate Analyzer, developed and manufactured by ERUN Environmental, features an innovative design concept and advanced technology. It offers automatic cleaning and high measurement accuracy, and is suitable for applications in power generation, petrochemical, paper, metallurgical, and waste heat recovery industries. The instrument is especially designed for measuring silicate concentrations in mixed-bed effluent, EDI ultrapure water, superheated steam, and saturated steam.

Brand: Erun
Benchtop Water Iron (Fe) Analyzer for Water Quality Testing
Model: ERUN-ST3-E3
The ERUN-ST3-H3 laboratory iron ion analyzer, developed and manufactured by ERUN Environmental Protection, is a high-precision iron ion analysis instrument.  It utilizes a brand-new design concept and advanced technology, features an automatic cleaning function, and offers high measurement accuracy. It is particularly suitable for measuring iron ion content in water.

Brand: Erun
Water Quality Phosphate Analyzer for Wastewater Treatment Plants
Model: ERUN-ST3-E3

Brand: Erun Environmental protection

Name: Portable residual chlorine tester

Brand: Erun Environmental protection
Name: Portable ammonia nitrogen analyzer
Model: ERUN-SP5-E6
The ERUN-SP5-E6 portable ammonia nitrogen analyzer developed and produced by Xi 'an Erun Environmental Protection Co., LTD is a kind of equipment for rapid detection of ammonia nitrogen content in water samples. It is easy to carry and easy to operate.

Brand: ERUN
Name： Portable Dissolved Oxygen Meter
Model： ERUN-SP9-A5DO: (Oxygen Electrode Method)
ERUN-SP9-A5 Portable Dissolved Oxygen Meter, independently developed and manufactured by Erun Environmental Protection. Stable performance, easy operation, supports one-handed use, suitable for rapid measurement of dissolved oxygen concentration (mg/L or ppm), oxygen saturation (%), and water temperature (°C) in aqueous solutions across various industries.The instrument is equipped with a dedicated dissolved oxygen electrode, enabling precise detection of dissolved oxygen levels in water across a wide range of applications.

Brand: Erun
Portable multi-parameter boiler water quality analyzer
Model: ERUN-SP9-11
Parameters: COD, conductivity, PH, etc.

Brand：ERUN
Model:ERUN-SP3-J4A
Parameters:Oil 
This product was developed and produced by ERUN Group in accordance with the National Environmental Protection Standard of the People's Republic of China "HJ637-2018 Water Quality - Determination of Petroleum and Animal and Vegetable Oils - Infrared Spectrophotometry" and is used for the determination of petroleum and animal and vegetable oils in industrial wastewater and domestic sewage.