TURBIDITY & SUSPENDED SOLID :
SOLITAX sc Turbidity, 1720E Low Range Turbidimeter. CHLORINE/ CHLORINE DIOXIDE : 9184 sc Free Chlorine Sensor or 9187 sc Chlorine Dioxide Sensor, CL17 Chlorine Analyzer. CONDUCTIVITY : Contacting Conductivity/ Resistivity Sensors, Inductive ( Electrodes) Conductivity Sensors