Brand: Erun
Laboratory benchtop colorimetric water quality tester
Model:ERUN-ST7-B5
Chromaticity (platinum-cobalt method)
Brand: Erun
Water quality sodium Na online analyzer
Model: ERUN-SZ3-M6
Parameter: Sodium
Brand:Erun
Portable handheld conductivity water quality tester
Model:ERUN-SP8-ASC-A4
Parameter:Conductivity
Brand:Erun  
Conductivity TDS resistivity water quality on-line analyzer

Model:ERUN-SZ1-A-A4
Brand: Erun
Water quality silicate on-line analyzer
Model: ERUN-SZ3-C5
Parameter: silicate
Brand: Erun Environmental protection

Name: Portable full alkalinity tester

Brand: Erun environmental protection
Name: Laboratory benchtop water quality alkalinity analyzer
Model Number:ERUN-97-A3
Parameters: alkalinity (spectrophotometry)
Brand: Erun environmental protection
Name: Portable water quality alkalinity tester
Model Number:ERUN-90-A3
Parameters: alkalinity (spectrophotometry)
Brand: Erun Environmental protection

Name: Portable water hardness tester
Model: ERUN-80-H2
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)
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