Brand: Erun
Portable multi-parameter water quality tester
number: ERUN-SP7
Parameters: COD, ammonia nitrogen, total phosphorus, total nitrogen, turbidity, copper, etc.
Brand: Erun
Portable multi-parameter water quality analyzer
Model number:ERUN-SP6-8
Parameters: COD, copper,  other 35 parameters.
Brand: Erun 
Portable multi-parameter water quality meter
Model number: ERUN-SP4
Parameters:  PH, ORP, conductivity DO, ect.
Brand: Erun
Portable water pollution monitoring equipment
Model number: ERUN-SP6-4
Parameters: COD, ammonia nitrogen, total phosphorus, total nitrogen.
Brand: Erun
Portable water pollution monitoring equipment
Model number: ERUN-SP7-4
Parameters: COD, ammonia nitrogen, total phosphorus, total nitrogen.
Brand: Erun environmental protection
Laboratory bench-top boiler water phosphate tester
Model:ERUN-ST7-E3
Parameters:phosphate ions
Brand: Erun environmental protection
Name: Laboratory bench-top total phosphorus water quality analyzer
Model number:ERUN-97-P1
Parameters:Total P TP (ammonium molybdate)
Brand: Erun environmental protection
Name: Portable total phosphorus water quality analyzer
Model number:ERUN-90-P1
Parameters:Total P TP (ammonium molybdate)
Brand: Erun environmental protection
Name: Laboratory bench-top total nitrogen (TN) water quality analyzer
Model number:ERUN-ST-TN711A
Parameters:Total Nitrogen TN(The ultraviolet method)
Brand: Erun environmental protection
Name: Laboratory bench-top total nitrogen (TN) water quality analyzer
Model number:ERUN-ST-TN711B
Parameters:Total Nitrogen TN(Achromatic acid spectrophotometry)
Brand: Erun environmental protection
Name: Laboratory bench-top formaldehyde water quality analyzer 
Model number:ERUN-ST-FH708
Parameters: formaldehyde(Spectrophotometer)
Brand: Erun environmental protection
Name: Laboratory bench-top hydrazine water quality analyzer 
Model number:ERUN-ST-HDR705
Parameters:  hydrazine(Spectrophotometer)
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