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.

Brand: ERUN
Model:ERUN-SP9
Parameters: chlorine/ PH/ turbidity
Water Quality tester | chlorine/ PH/ turbidity，Employing advanced digital sensor technology, our range of portable and online water quality monitoring products can precisely detect the physical, organic and inorganic characteristics of water, including parameters such as pH, chlorine (Cl) and turbidity.

Brand: Erun
Portable Water Chloride Ion (Chloride) Tester
Model: ERUN-SP7-C4
Parameter: Chloride ion (spectrophotometric)

Brand：Erun
Title: Portable residual chlorine water quality Meter
Model：ERUN-SP7-K6
Parameter: residual chlorine (colorimetric method)

Brand: Erun
On-line water quality TDS analyzer
Model: ERUN-SZ4-A-A3
Parameter: TDS

Brand: Erun
Title：Current flow meter
Model: ERUN-SZ-SCD
Parameters: Ionic and colloidal charge

Brand: Erun
title:Laboratory effective chlorine tester
Model:ERUN-SP7-K2
Parameter:Effective chlorine

Brand: Erun
Multi-parameter swimming pool water quality online monitoring system 
ERUN-WQS-6020

Brand: ERUN
Title：Total Organic Carbon Analyzer
number：ERUN-ST3-J3
parameters：TOC