Brand: Erun
Portable multi-parameter water quality tester
number: ERUN-SP7
Parameters: COD, ammonia nitrogen, total phosphorus, total nitrogen, turbidity, copper, etc.
Brand:ERUN
Title: PH meter for water
Model:ERUN-SQ-DE4
Parameters:PH
Brand: Erun
INTELLIGENT LABORATOR multi-parameter water quality tester
number: ERUN-ST7
Parameters:  ammonia nitrogen, PH, hardness.
Brand: Erun
Laboratory bench-top multi-parameter water quality analysis tester
number: ERUN-ST7
Parameters: COD, ammonia nitrogen, total phosphorus, total nitrogen, hardness, 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 
Name: Portable integrated multi-parameter water quality analyzer
Model number: ERUN-SP8-ASC
Parameters: Temperature, depth, PH, ORP, conductivity & salinity & TDS, turbidity, DO, chlorophyll,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  
Dissolved oxygen water quality on-line analyzer

Model:ERUN-SZ1-A-A5
Brand:Erun  
Name:Water quality online hardness analyzer

Model:ERUN-SZ1S-A-B2
Brand: Erun
Portable Colorimetric Water Quality Tester
Model:ERUN-SP7-B5
Chromaticity (platinum-cobalt method)
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