APCI Capillary Electrode, API 4000, API 5000, 4500 Back Catalog number: CTS-21102 Availability: In the manufacturer's stock Price on request - + Recommended MI180 Comb log GLP pH/mV/EC/TDS/NaCl/Temp Mi180 Price on request MI170 Comb. Log. GLP EC/TDS/NaCl/Temp bench meter Mi170 Price on request PH56 pH/Temp waterproof tester pH56 Price on request