Brand: Erun environmental protection
Name: Portable multi-parameter water quality tester
Model number: ERUN-SP7
Parameters: COD, ammonia nitrogen, total phosphorus, total nitrogen, residual chlorine, total chlorine, chlorine dioxide, turbidity, chromaticity, copper, etc.

Brand: Erun environmental protection
Name: Portable multi-parameter  water quality tester
Model number: ERUN-SP6-4
Parameters: COD, ammonia nitrogen, total phosphorus, total nitrogen.

Brand: Erun environmental protection
Name: laboratory bench top boiler water quality oil detector
Model number: ERUN-ST-OD380
Parameters: Oil(Infrared spectrometry)

Brand: Erun environmental protection
Name: Portable water quality chemical oxygen demand COD analyzer
Model number：ERUN-97-C2
Erun environmental protection research and development, production of Portable water quality chemical oxygen demand COD analyzer, using manganese method to determine the COD in water, also known as CODMn or permanganate index, widely used in environmental monitoring, sewage treatment, universities, scientific research institutions and other departments.

Brand: Erun environmental protection
Name: Laboratory bench-top water quality chemical oxygen demand COD analyzer
Model number：ERUN-97-C1
Parameters:Chemical oxygen demand COD (closed digestion colorimetric method)

Brand：Erun 
Name:   Online Oil in Water Monitor
Model：ERUN-SZ4-A-J4
Parameter：Oil (UV fluorescence method)

Brand：Erun 
Name:   Online Oil in Water Monitor
Model：ERUN-SZ4-A-J4
Parameter：Oil (UV fluorescence method)

Brand：Erun 
On-line analyzer for oil (PAHs) water quality in water
Model：ERUN-SZ4-A-J4C
Parameter：Oil (UV fluorescence method)

Brand：Erun 
Name：COD Online Water Quality Monitor
Model：ERUN-SZ4-A-J5
Parameter：COD(UV absorption)