Brand: Erun 
Name: Portable Phosphate ions tester
Model: ERUN-SP5-E3
Parameter: phosphate
Brand: Erun environmental protection
Laboratory bench-top boiler water phosphate tester
Model:ERUN-ST7-E3
Parameters:phosphate ions
Brand: Erun environmental protection
Name: Portable water quality phosphate (phosphate ions) tester
Model number: ERUN-90-P2
Parameter: Phosphate (phosphate  ions)(Ammonium molybdate Spectrophotometer)
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 Environmental protection

Name: Portable copper ion detector

Brand: Erun environmental protection
Name: Laboratory benchtop water quality copper (Cu) metal element content analyzer
Model Number:ERUN-97-C6
Parameters: copper (Cu) (Copper reagent spectrophotometry)
Brand: Erun environmental protection
Name: Portable water quality copper(Cu)metal element content tester
Model Number:ERUN-90-C6
Parameters: copper (Cu) (Copper reagent spectrophotometry)
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