Model 172 EI-DVI Water and Soil kit 3 ½ digit LCD Display with 8 Parameters pH 0-14/Cond. 0-20µs / DO 20mg/L TDS 0-20ppt / Salinity 0-50ppt / Absorbance O.D / Turbidity 0-1000 NTU / Colorimeter / Temp 0-100°c, Battery cum mains operated, in Briefcase suitable for Field purposes