VEVOR TN420 Portable Turbidity Meter Manual Tohutohu
VEVOR TN420 Portable Turbidity Meter Whakatakotoranga Hangarau Tikanga Ine 90° ine marara te ine Maama Maama Tungsten (400 – 600nm) kakawaea lamp, compliant with US EPA 180.1 Method Measuring Range 0 to 1000 NTU (FNU), automatic range…