APCI Capillary Electrode, API 4000, API 5000, 4500 Back Catalog number: CTS-21102 Availability: In the manufacturer's stock Price on request - + Recommended MI151 pH/ORP/Temp combined bench meter Mi151 Price on request MI190 Comb logging with GLP DO/Temp bench meter Mi190 Price on request MC410 TDS monitor MC410 Price on request