Brand: Erun environmental protection
Name: Laboratory benchtop water quality (total) hardness  analyzer
Model Number:ERUN-97-H2
Parameters: hardness (spectrophotometry--Acid chromium blue K method)
Brand: Erun environmental protection
Name: Portable water quality hardness tester
Model number: ERUN-90-H2
Parameter: hardness (spectrophotometry--Acid chromium blue K method)
Brand:Erun
Name:Water Hardness Analyzer
Model:ERUN-SZ3-B2
Parameters: Hardness(EDTA titration)
Brand: Erun environmental protection
Name: Laboratory bench water turbidity tester
Model Number:ERUN-97-T4
Parameters: turbidity(NTU或FTU)(Scattering method)
Brand: Erun environmental protection
Name: Portable water quality turbidity tester
Model Number:ERUN-90-T4
Parameters: turbidity(NTU或FTU)(Scattering method)
Brand: Erun
Precision PH/mV/conductivity/dissolved oxygen multi-parameter meter
Model number:ERUN-ST3-DB6
Parameters: PH/mV/Conductivity/Dissolved Oxygen
Brand:Erun  
Online pH Water Quality Monitor

Model:ERUN-SZ2-B-B7A
Brand:Erun  
PH water quality on-line monitor

Model:ERUN-SZ1-A-B7
Brand: Erun
Title: Laboratory PH tester
Model:ERUN-ST7-B7
Parameters: alkalinity acidity PH 
Brand: Erun
Laboratory water quality dissolved oxygen(DO) tester
Model:ERUN-ST7-A5
Parameters:DO (oxygen electrode method)
Brand: Erun 
Portable water quality dissolved oxygen(DO) tester
Model :ERUN-SP7-A5
Parameters:DO(oxygen electrode method)
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