APCI Capillary Electrode, API 4000, API 5000, 4500 Back Catalog number: CTS-21102 Availability: In the manufacturer's stock Price on request - + Recommended MI190 Comb logging with GLP DO/Temp bench meter Mi190 Price on request EC59 EC/TDS/Temp waterproof tester EC59 Price on request MI5560 pH55 (pH/Temp waterproof tester Mi5560 Price on request